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Norman4
.300 member

Reged: 16/01/15
Posts: 111
Loc: Vermont,USA

Help with shot out bore
#259148 - 18/01/15 09:03 AM

I purchased a commercial BSA sporter at a local gunshop a while back. I wasn't even sure it was a sporter 'til I got it home and did some extensive research on it. It's the most basic model BSA made. The give-aways were the 24 inch barrel with the folding hood, the bolt mounted safety, and what looked like a carbine type sight, otherwise it looked a lot like any old chopped SMLE. Even had a magazine cut-off and ten shot magazine. I fell in love with it. It points well and cycles easily from the shoulder. Took it out to shoot it and it key-holed every time. Perfectly sideways. I can drop a .314 right through the barrel. I can shoot .318s in it, but the accuracy was lousy. A .323 bullet is too tight to push through with a ramrod. I'm new to your forums and wondered if anyone has had any experience with reboring and or rechambering and, if so, some reliable smiths who might do the work here in the US. Thanks for your time. Norman4

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MikeRowe
.333 member

Reged: 23/11/11
Posts: 478
Loc: Arkansas, USA

Re: Help with shot out bore [Re: Norman4]
#259151 - 18/01/15 11:19 AM

If it's the heavier profile you could rebore it to .375x2 1/2" Nitro which was chambered in the Lee Speeds.

Norm Johnson (High Plains Reboring) in Turtle Lake, ND is a good guy to have do the job.

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Norman4
.300 member

Reged: 16/01/15
Posts: 111
Loc: Vermont,USA

Re: Help with shot out bore [Re: MikeRowe]
#259153 - 18/01/15 11:54 AM

Thanks MikeRowe. I'm not familiar enough with barrel profiles. What's a heavy profile barrel at the muzzle? What is standard? Would .375 2 1/2 require opening the bolt face?

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Norman4
.300 member

Reged: 16/01/15
Posts: 111
Loc: Vermont,USA

Re: Help with shot out bore [Re: Norman4]
#259154 - 18/01/15 01:52 PM

Here are the pictures if I did everything right.

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MikeRowe
.333 member

Reged: 23/11/11
Posts: 478
Loc: Arkansas, USA

Re: Help with shot out bore [Re: Norman4]
#259157 - 18/01/15 02:56 PM

From memory, I think the heavier profile is about .600" at the muzzle, and the lighter one runs about .560".

I don't think the bolt face needs modifications - I'd have to check that.

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lancaster
.470 member

Reged: 06/05/08
Posts: 8727
Loc: There's a lighthouse in the mi...

Re: Help with shot out bore [Re: MikeRowe]
#259158 - 18/01/15 03:24 PM

.315 indian (8x50R Mannlicher) is another possibility

--------------------
Norwegian hunter misses moose, shoots man on toilet
.
bringing civilisation to the barbarians

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Norman4
.300 member

Reged: 16/01/15
Posts: 111
Loc: Vermont,USA

Re: Help with shot out bore [Re: lancaster]
#259162 - 19/01/15 01:06 AM

By the looks of things, I have the standard small barrel diameter. I'm not sure if that would leave enough meat for .375 caliber. It certainly would clean the rifling up. I looked into the .315R. It was a listed caliber for my rifle. I suspect boring to 8mm would clean up the rifling, but would need a smith to ascertain that for me. It would require rechambering and, I assume, some modification of the action? The .315R has a large case diameter which made me question feeding issues in a .303 magazine? Also the rim diameter means opening the bolt face and extractor too. Even from what little reading I've gotten in here in the last few days, it seems the ammo can be problematic. Can you make cases from the 8x56R? I have an M95. I do reload when I have the time, and the cartridge is intriguing and certainly would be adequate for the type of hunting we do here. (Deer,Bear,Moose,Coyote/Wolf) Is there anyone with experience making this conversion? Thanks for the replies! Norman4.

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xausa
.400 member

Reged: 07/03/07
Posts: 2037
Loc: Tennessee, USA

Re: Help with shot out bore [Re: Norman4]
#259164 - 19/01/15 01:46 AM

I have a SMLE sporter, evidently made in India, with the marking ".315" on the breech along with the proof marks. I assumed that the bore had been opened to .315" to comply with the law prohibiting military calibers and simply loaded .303 British brass with .315" bullets I sized down from .323". It seems to work fine, at least to the extent that the bullets do not keyhole. The sighting system is so primitive that I can't really comment on the accuracy.

I wonder if your rifle might have the same chamber as mine.

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Norman4
.300 member

Reged: 16/01/15
Posts: 111
Loc: Vermont,USA

Re: Help with shot out bore [Re: xausa]
#259165 - 19/01/15 02:05 AM

The .315R and the .303 use the same case?

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xausa
.400 member

Reged: 07/03/07
Posts: 2037
Loc: Tennessee, USA

Re: Help with shot out bore [Re: Norman4]
#259167 - 19/01/15 02:11 AM

Quote:

The .315R and the .303 use the same case?

I don't know. I never heard of the .315R until I happened upon this thread.

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Nailcreek
.300 member

Reged: 13/08/08
Posts: 150
Loc: Saukville, WI, USA

Re: Help with shot out bore [Re: xausa]
#259169 - 19/01/15 02:26 AM

You might wish to consider re-barreling it. Criterion Barrels will be coming out with a No.1 profile barrel in the future, once their No.4 barrel is up and running.

--------------------
Veni, Vedici, Veggie ... I came, I saw, I had a salad.

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lancaster
.470 member

Reged: 06/05/08
Posts: 8727
Loc: There's a lighthouse in the mi...

Re: Help with shot out bore [Re: Nailcreek]
#259171 - 19/01/15 03:11 AM

the .315 india is the 8x50R Mannlicher
Prvi 8x56R is THE basic case to make it, .323 for barrel diameter
I have the impression reboring and rechambering will clean up the original .303 chamber. probably the 8x50R was choose because reworking existing .303 enfield rifles was trouble free and simple when the .303 cartridge ban came.

--------------------
Norwegian hunter misses moose, shoots man on toilet
.
bringing civilisation to the barbarians

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Norman4
.300 member

Reged: 16/01/15
Posts: 111
Loc: Vermont,USA

Re: Help with shot out bore [Re: Nailcreek]
#259175 - 19/01/15 04:14 AM

Quote:

You might wish to consider re-barreling it. Criterion Barrels will be coming out with a No.1 profile barrel in the future, once their No.4 barrel is up and running.

Are you saying Criterion is making a BSA contoured barrel that could be purchased in .303? That would be something to consider, certainly. Wait. I'm rereading your post. You mean they are making a No. 1 SMLE contour barrel? Slightly different, but doable.

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Norman4
.300 member

Reged: 16/01/15
Posts: 111
Loc: Vermont,USA

Re: Help with shot out bore [Re: lancaster]
#259176 - 19/01/15 04:17 AM

Quote:

the .315 india is the 8x50R Mannlicher
Prvi 8x56R is THE basic case to make it, .323 for barrel diameter
I have the impression reboring and rechambering will clean up the original .303 chamber. probably the 8x50R was choose because reworking existing .303 enfield rifles was trouble free and simple when the .303 cartridge ban came.

It would seem like it made sense. Maybe there wouldn't be much modification of the action required? Does anyone have any experience with this conversion, or am I in new waters here?

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Nailcreek
.300 member

Reged: 13/08/08
Posts: 150
Loc: Saukville, WI, USA

Re: Help with shot out bore [Re: Norman4]
#259177 - 19/01/15 05:16 AM

Criterion is currently getting a No.4 barrel ready for market, after which they've started on the No.1 SMLE barrel. I have dropped off MLE take-off ("heavy barrel") which has the earlier knox (sp) form and the heavier contour, which like yours was shot out. Here's their web site and contact information. I agree, the heavy barrel would be more suited for the BSA, but a lot of them were re-barreled with the later SMLE barrels as well.

http://criterionbarrels.com/

--------------------
Veni, Vedici, Veggie ... I came, I saw, I had a salad.

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lancaster
.470 member

Reged: 06/05/08
Posts: 8727
Loc: There's a lighthouse in the mi...

Re: Help with shot out bore [Re: Norman4]
#259179 - 19/01/15 05:41 AM

Quote:

Quote:

the .315 india is the 8x50R Mannlicher
Prvi 8x56R is THE basic case to make it, .323 for barrel diameter
I have the impression reboring and rechambering will clean up the original .303 chamber. probably the 8x50R was choose because reworking existing .303 enfield rifles was trouble free and simple when the .303 cartridge ban came.

It would seem like it made sense. Maybe there wouldn't be much modification of the action required? Does anyone have any experience with this conversion, or am I in new waters here?

I fear you are the first doing this
iirc, there was once a reboring into 35 WCF which is very close to the 303 base.
read about rechambering into 7,62x54R a cartridge very similar to 8x50R but with a .311 diameter bullet.

--------------------
Norwegian hunter misses moose, shoots man on toilet
.
bringing civilisation to the barbarians

Edited by lancaster (19/01/15 05:58 AM)

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Sarg
.400 member

Reged: 20/01/07
Posts: 1365
Loc: Nil

Re: Help with shot out bore [Re: lancaster]
#259181 - 19/01/15 07:06 AM

I know a bit on this as I have done it, most worn/pitted 303/311-312 barrels will not clean up enough to go to 8mm, I had a light profile (SMLE type) & heavy barrel (MLM/MLE type) bored out to 375 but the 375 is VERY close to the sight holes & has to be keeped to low presure (I dont have the barrels as they can not be send to me now days) we have a poster on this site who rebore to 338/303 (a non Speeder round) & he likes it very much !

I like the look of some of the 9mm rimmed cartridges to !

Oh one barrel to look for & may be found shot/rusted out is a H profile heavy barrel that were made for the SMLE rifle, these have no rear sight holes & can be rebored out to what ever size you like, even up to 40cal, I was thinking of doing a 40/60 Maynard but may well go to 405Win as it will fit in my 1888 type mag .

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Norman4
.300 member

Reged: 16/01/15
Posts: 111
Loc: Vermont,USA

Re: Help with shot out bore [Re: Nailcreek]
#259183 - 19/01/15 07:48 AM

Quote:

Criterion is currently getting a No.4 barrel ready for market, after which they've started on the No.1 SMLE barrel. I have dropped off MLE take-off ("heavy barrel") which has the earlier knox (sp) form and the heavier contour, which like yours was shot out. Here's their web site and contact information. I agree, the heavy barrel would be more suited for the BSA, but a lot of them were re-barreled with the later SMLE barrels as well.

http://criterionbarrels.com/

Thank you for the information Nailcreek. I have had more than a few people tell me to just find an old chopped SMLE and swap the barrels. The only reason I have resisted, is a romantic infatuation with the nonmilitary commercial contour. Which, considering the actual value of the rifle, is probably impractical. But a brand new original SMLE contoured barrel in .303 might not make me feel like I was forsaking a friend. I probably could cut it down to the sporter 24" length and fit a sight to make it look reasonably civilized. I have a fondness for the .303 caliber itself. I live on the Canadian border and the woods were full of sporterized SMLEs in my youth. I suspect that they were only second to the 1894 Winchester carbines in proliferation with the 1899 Savages coming in somewhere after that. I would assume it reasonable to believe that this rifle made the trip down at some point. It sported a weaver side mount and an ancient brass trimmed weaver straight tubed scope. I could see it plausible that it hunted through two generations and the third sold Gramps rifle for cash or traded for a fiberglass stocked Savage in .270. A common enough story up here. In any event, you folks are offering me some plausible options!

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Norman4
.300 member

Reged: 16/01/15
Posts: 111
Loc: Vermont,USA

Re: Help with shot out bore [Re: Sarg]
#259184 - 19/01/15 07:59 AM

Quote:

I know a bit on this as I have done it, most worn/pitted 303/311-312 barrels will not clean up enough to go to 8mm, I had a light profile (SMLE type) & heavy barrel (MLM/MLE type) bored out to 375 but the 375 is VERY close to the sight holes & has to be keeped to low presure (I dont have the barrels as they can not be send to me now days) we have a poster on this site who rebore to 338/303 (a non Speeder round) & he likes it very much !

I like the look of some of the 9mm rimmed cartridges to !

Oh one barrel to look for & may be found shot/rusted out is a H profile heavy barrel that were made for the SMLE rifle, these have no rear sight holes & can be rebored out to what ever size you like, even up to 40cal, I was thinking of doing a 40/60 Maynard but may well go to 405Win as it will fit in my 1888 type mag .

This is a concern I have in the back of my head. I fear that if I can shoot .318s in it with poor accuracy, that boring to .323 may not clean the barrel enough. My next thought was to go to .338 or .358 if the barrel was thick enough to take it. I have read of some success with the 35/9mm as you may also use pistol bullets for cheap practice and vermin. I haven't found much on the .338 wildcats. I would be suspicious of getting a bullet soft enough to expand reasonably at the estimated velocity. I have a few old Hornady 200grn. bullets for the old .33 Winchester kicking around, but I don't believe they are still in production. A couple interesting alternatives to consider though! Does anyone have experience with either of these wildcats?

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Sarg
.400 member

Reged: 20/01/07
Posts: 1365
Loc: Nil

Re: Help with shot out bore [Re: Norman4]
#259191 - 19/01/15 09:38 AM

I think this tread may help you on the 338/303 looks good other than not a factory Cal.

http://forums.nitroexpress.com/showflat....ic=&Search=

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Rowdy
.275 member

Reged: 12/09/04
Posts: 53
Loc: Victoria. Australia

Re: Help with shot out bore [Re: Sarg]
#259194 - 19/01/15 11:35 AM

The rifle pictured is the BSA #4 sporting carbine which based on the SMLE (No.1) barrel.

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Norman4
.300 member

Reged: 16/01/15
Posts: 111
Loc: Vermont,USA

Re: Help with shot out bore [Re: Sarg]
#259195 - 19/01/15 12:23 PM

Quote:

I think this tread may help you on the 338/303 looks good other than not a factory Cal.

http://forums.nitroexpress.com/showflat....ic=&Search=

At least some solid info. Thanks Sarg.

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Norman4
.300 member

Reged: 16/01/15
Posts: 111
Loc: Vermont,USA

Re: Help with shot out bore [Re: Rowdy]
#259196 - 19/01/15 12:28 PM

Quote:

The rifle pictured is the BSA #4 sporting carbine which based on the SMLE (No.1) barrel.

Thanks Rowdy. Yes, according to the research I've done, it is called a No.4 Sporting carbine. You are right about the contour of the barrel being similar to the SMLE except of course for the 24" length instead of the military 25+" length, which may or may not be the reason for naming it a "carbine", although it's handiness does suggest a smaller rifle than actually it is.

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DoubleD
.400 member

Reged: 23/11/03
Posts: 2396
Loc: Retired in Oklahoma

Re: Help with shot out bore [Re: Norman4]
#259207 - 20/01/15 01:21 AM

This rifle looks to be good candidate for relining and kept .303. Get a liner from TJ's, send it and the Rifle to John Taylor Machine for the work.

--------------------
DD, Ret.

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Norman4
.300 member

Reged: 16/01/15
Posts: 111
Loc: Vermont,USA

Re: Help with shot out bore [Re: DoubleD]
#259212 - 20/01/15 09:20 AM

Quote:

This rifle looks to be good candidate for relining and kept .303. Get a liner from TJ's, send it and the Rifle to John Taylor Machine for the work.

If that is a feasible option I like the sound of it. I like the .303 cartridge. If you could give me more information, DoubleD, I'd definitely pursue that further. That way everything could work together the way it's supposed to and I get to keep everything original. Including the markings and the barrel. Then it would be back in business as a classy little meat getter!

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DoubleD
.400 member

Reged: 23/11/03
Posts: 2396
Loc: Retired in Oklahoma

Re: Help with shot out bore [Re: Norman4]
#259217 - 20/01/15 12:03 PM

Here is the contact page for John Taylor.

http://www.johntaylormachine.com/49.0.html

Contact him. He is a no frills, no BS operation and a darling among the the single shoot crowd. He did a number of rifles for while I was overseas both liners and barrel installs.

Here is the TJ's info.

TJ's Enterprises
3652 Neltner Rd
Alexandria, KY 41001
(859) 635-5560

--------------------
DD, Ret.

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DarylS
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Loc: Beautiful British Columbia, Ca...

Re: Help with shot out bore [Re: Norman4]
#259225 - 20/01/15 02:10 PM

Not sure if it has been suggested, but it would be re-bored and rifled to a .338 or .358 calibre on the .303 case - improved or not - your choice.
I'd contact a barrel maker in the States and ask if they do re-bores and if not, will they suggest someone who will.

Ken Waters has had more than one shot-out .303 re-bored, one to a .358 on the .444 Marlin case. I'd stay with the .303 case, myself.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

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Norman4
.300 member

Reged: 16/01/15
Posts: 111
Loc: Vermont,USA

Re: Help with shot out bore [Re: DoubleD]
#259246 - 21/01/15 09:27 AM

Quote:

Here is the contact page for John Taylor.

http://www.johntaylormachine.com/49.0.html

Contact him. He is a no frills, no BS operation and a darling among the the single shoot crowd. He did a number of rifles for while I was overseas both liners and barrel installs.

Here is the TJ's info.

TJ's Enterprises
3652 Neltner Rd
Alexandria, KY 41001
(859) 635-5560

Thanks DD! I'm going to drop these guys a line and see what I can do. Now I wish I'd kept my old No.1 with the pitted bore so I could try an 8x50R and a .338/.303! Wait. I guess being British, it should read .303-.338.... Anyway. This has been a big help Gentlemen. Sometimes you just got'ta knock things around a little before you can put them together. I'll keep the forum posted about what I find out and where I head with this. Would love to hear about any of the other members who have tried some of these options, and see the fruits of their labors. Best to all Norman4.

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2152hq
.300 member

Reged: 20/05/12
Posts: 123
Loc: USA

Re: Help with shot out bore [Re: Norman4]
#259446 - 25/01/15 05:11 PM

I'd have it rebored to .35 cal on the 303 Brit case.
Simple and requires no alterations to keep it feeding & extracting/ejecting.

I had a BSA Lee/Speed done over to the cal and a (Watson Bros) Martini Sporter also. Both had burned out .303 bores.

JES Reboreing did the work for me.
Excellent work, more than fair prices and a fast turn around of a couple of weeks.

http://www.35caliber.com/

I loaded the round on 35Remington dies which I already had .
It made excellent shooters out of a couple of sideways lead throwers with little effort.
Not quite as classic sounding as a .375 whatever but they worked just fine.

He can do a .338 or .375 on the 303 case too.
.35 just seemed a good fit as I had a good supply of bullets already from my 35 Remington and Whelen shooting.

Call Jesse. Leave a msg if he doesn't answ,,he WILL call you back.He doesn't always hear the phone ring with the machines running.

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Igorrock
.400 member

Reged: 01/03/07
Posts: 1641
Loc: Finland

Re: Help with shot out bore [Re: 2152hq]
#259449 - 25/01/15 08:18 PM

Here is one BSA .25/.303 for sale in germany:

http://www.egun.de/market/item.php?id=5297784

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http://promaakari.wordpress.com/

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mart
.300 member

Reged: 20/01/04
Posts: 107
Loc: Alaska

Re: Help with shot out bore [Re: Igorrock]
#259577 - 28/01/15 07:58 PM

I'd second the suggestion to go with JES reboring. He did a Sedgley Springfield for me that had a bad bore. I had the rifle back in 10 days. He went from 30-06 to 375 Whelen. Jes recommends .200 over bore size for a minimum diameter at the muzzle. With that in mind a .375 would require a minimum muzzle diameter of .575

I would look at any of the wildcats on the 303; .338, .35, 9.3, .375 or even .411. All would be excellent choices. They all would be easy to make from standard 303 brass and CH-4D will make dies very reasonably, if they don't already have them in stock. They have a great variety of wildcat dies.

The 9.3x303 might be a fun wildcat to play with. Should run close to 9.3x57 ballistics and be a real fun round. The 375x303 with the old Hornady 270 grain round nose would make a real thumper.

Good luck with your project.

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DarylS
.700 member

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Posts: 26509
Loc: Beautiful British Columbia, Ca...

Re: Help with shot out bore [Re: mart]
#259593 - 29/01/15 02:11 AM

Ken Waters did a .375 on the .303 without increasing the shoulder diameter and did this on a Ruger #1.

I'd be inclined to think in terms of an improved .303 case shape, for the case longevity increase straighter cases are prone to provide and for the improved case capacity & performance in the #3's and #4's.

In a re-barrel, the .270/.303 was popular in Australia for a time and included factory ammo thus head stamped.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

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Ash
.400 member

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Posts: 1653
Loc: Australia

Re: Help with shot out bore [Re: DarylS]
#259743 - 31/01/15 11:25 PM

Quick Q: Double D recommended relining to 303. I thought this wasn't advised for higher pressure/power ? If this is ok, would it be fine relining a 6.5x53r, if things are kept moderate (factory ballistics)?

Cheers.

--------------------
.

Edited by Ash (01/02/15 12:11 AM)

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Norman4
.300 member

Reged: 16/01/15
Posts: 111
Loc: Vermont,USA

Re: Help with shot out bore [Re: Ash]
#259800 - 02/02/15 12:26 AM

Quote:

Quick Q: Double D recommended relining to 303. I thought this wasn't advised for higher pressure/power ? If this is ok, would it be fine relining a 6.5x53r, if things are kept moderate (factory ballistics)?

Cheers.

Relining weakens the rifle? Is this true? I would think the liner would be made of much better quality/stronger steel than the original barrel. I would not think the installation of the liner would be any less invasive to the strength of the weapon than boring the barrel open to, say .358, and removing so much steel. Can anyone explain this to me? Norman4

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Ash
.400 member

Reged: 10/05/11
Posts: 1653
Loc: Australia

Re: Help with shot out bore [Re: Norman4]
#259854 - 02/02/15 05:55 PM

I can't answer Norman, but i did see someone had relined their 30-40 Krag. I think this is about the same pressures as a 303 or 6.5x53, so i assume it's fine?

--------------------
.

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DoubleD
.400 member

Reged: 23/11/03
Posts: 2396
Loc: Retired in Oklahoma

Re: Help with shot out bore [Re: Ash]
#259876 - 03/02/15 01:14 AM

No relining doesn't weaken the barrel. You have a liner made of modern steels, if memory serves, 4140 from TJ's, often times much stroger than the original barrel.

ReLining isn't for every gun and I suggest it only for maintaining the original barrel profile and markings. Same for a rebore, except the caliber markings need changed.

Most barrel makers can and will duplicate your barrel for a price of course.

I have back in the olden days had a number of guns rebored for customers. Never seen it make a bad barrel shoot better. A good barrel that shot good and got shot out seems to continue to shoot good rebored. In the end the cost of a good rebore seemed to equal the cost of buying a new barrel and installing it. Reboring seemed to be the way to go in the days before we had so many good barrel makers.

--------------------
DD, Ret.

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Norman4
.300 member

Reged: 16/01/15
Posts: 111
Loc: Vermont,USA

Re: Help with shot out bore [Re: DoubleD]
#259898 - 03/02/15 10:12 AM

Well, I keep leaning towards relining to keep the rifle kind of "original." It also simplifies the loading process for me as far as reloading .303s. If the price begins to climb towards the price of a new barrel that might be an issue. Of course, a new barrel would require fitting of the sights, barrel band, and bluing. What a conundrum! A savage axis in 30-06 wouldn't cause so many headaches! Of course if I didn't want to drive a Cadillac I'd buy a Chevrolet. Norman4

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Ash
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Posts: 1653
Loc: Australia

Re: Help with shot out bore [Re: Norman4]
#259916 - 03/02/15 06:53 PM

Exactly my thoughts for the reline - saves refitting the sling mount, and sights. And you get to keep the barrel markings (proof stamps, makers/retailers name, etc.)

--------------------
.

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Norman4
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Posts: 111
Loc: Vermont,USA

Re: Help with shot out bore [Re: Ash]
#259951 - 04/02/15 10:04 AM

Quote:

Exactly my thoughts for the reline - saves refitting the sling mount, and sights. And you get to keep the barrel markings (proof stamps, makers/retailers name, etc.)

Yes. Keeps the soul of the original.

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Deutsche_Vortrekker
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Posts: 449
Loc: From the Kalahari to the USA

Re: Help with shot out bore [Re: Norman4]
#260107 - 08/02/15 02:19 AM

Quote:

Quote:

I think this tread may help you on the 338/303 looks good other than not a factory Cal.

http://forums.nitroexpress.com/showflat....ic=&Search=

At least some solid info. Thanks Sarg.

Yes , That is my rifle in 338/303 . JES did the reboring on the rifle and a most excellent job . Reloading in simple : I just put a 338 expander in a 303 neck size die and used standard new 303 cases ( headspace is exactly the same as a 303 British case) . For seating I just used a 338 Federal die ( works fine ) I am the process of getting custom dies made in 338/303 Nitro Express. Puts a 200 grain Hornady interlock out at 2,200 - 2,300 FPS depending on your load of 4064

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Deutsche_Vortrekker
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Loc: From the Kalahari to the USA

Re: Help with shot out bore [Re: Norman4]
#263357 - 10/04/15 12:23 AM

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Quick Q: Double D recommended relining to 303. I thought this wasn't advised for higher pressure/power ? If this is ok, would it be fine relining a 6.5x53r, if things are kept moderate (factory ballistics)?

Cheers.

Relining weakens the rifle? Is this true? I would think the liner would be made of much better quality/stronger steel than the original barrel. I would not think the installation of the liner would be any less invasive to the strength of the weapon than boring the barrel open to, say .358, and removing so much steel. Can anyone explain this to me? Norman4

I enquired on relining my Lee Speed before re-chambering to 338/303 Nitro Express and no relining outfit or gunsmith would take the job for this very reason . It would have to be custom because relining companies stick to lower pressure jobs. The JES re-chambering was quite simple :the bore was just drilled out to 338 ,the 303 head-space stayed exactly the same with the 338/303 just a different bullet . The same thing as taking a 25-06 and re-boring it to a 30-06 ....Interestingly after re-boring I fired a box of 303 British Winchester hunting ammo out of the rifle to obtain the brass with no ill affects ( remember the headspace is exactly the same ) The groups with the 303 Ammo still hit into a 6-8" group at 100 yards with some keyholes but was no worse than the original shot out 303 bore . My 338/303 reloads in the new bore shoot cloverleafs now at 100 ; quite an improvement over the original !

Edited by Deutsche_Vortrekker (10/04/15 12:51 AM)

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