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Shooting & Reloading - Mausers, Big Bores and others >> Rifles

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Woodbeef
.275 member

Reged: 30/12/06
Posts: 82
Loc: Badlands of Alberta

Converting to 300 H&H Mag.
#156052 - 11/03/10 06:28 AM

Ok I keep coming back to a desire for something in 300 H&H. What should I look for in a factory rifle to use as a donor? Would something in 375 H&H be easier to do? If I do this what about the barrel diameter difference for the stock? Or should I look for an older Sako in 30-06? What about a Model 70 Winchester? Any other ideas?

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SharpsNitro
.375 member

Reged: 12/08/08
Posts: 729
Loc: Arizona, USA

Re: Converting to 300 H&H Mag. [Re: Woodbeef]
#156061 - 11/03/10 08:01 AM

You could keep an eye out for a M70 in 300H&H. I passed on a nice one, to my regret, last year that was in great condition and was only going for $1,500. I saw another pretty nice one recently for $1,800; both were pre-64 standard grades. You could find a nice one in 30-06 and convert it but it would probably cost a lot more money than finding one in the caliber you want. The 30-06 barrel contour should be fine but you have to: get a new barrel in matching factory contour, get the H&H magazine box, spring and follower, modify the bolt face and extractor, open up the bottom of the action for the new magazine, open up the ejection port and possibly tune the rails for feeding.

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xausa
.400 member

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

Re: Converting to 300 H&H Mag. [Re: SharpsNitro]
#156070 - 11/03/10 09:17 AM

A few years back (maybe four) I bought a pre-64 Model 70 in .300 H&H which some idiot had chrome plated! Cost $550. One trip to the chrome plating shop to have it stripped and then to the bluing tank: voila: a new appearing rifle with a new barrel in .416 Remington Magnum.

PS: Douglas will duplicate the contour of a pre-64 barrel in any caliber you might want. Just send the old barrel to copy.

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SharpsNitro
.375 member

Reged: 12/08/08
Posts: 729
Loc: Arizona, USA

Re: Converting to 300 H&H Mag. [Re: xausa]
#156073 - 11/03/10 09:47 AM

Quote:

A few years back (maybe four) I bought a pre-64 Model 70 in .300 H&H which some idiot had chrome plated! Cost $550. One trip to the chrome plating shop to have it stripped and then to the bluing tank: voila: a new appearing rifle with a new barrel in .416 Remington Magnum.

PS: Douglas will duplicate the contour of a pre-64 barrel in any caliber you might want. Just send the old barrel to copy.

Chrome plating? That's pretty bad. The shop I frequent has a pre-war Model 70 that started life as a .22 Hornet, a previous owner converted it to a .222 Rem and its now going for around $500. It still has the original bolt and magazine but it's all been heavily modified to fit the .222, it's a sad sight.

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WyoJoe
.300 member

Reged: 18/02/04
Posts: 234
Loc: Cheyenne, WY USA

Re: Converting to 300 H&H Mag. [Re: Woodbeef]
#156335 - 13/03/10 06:32 AM

You can find several listed on Gunbroker. Also if you want a single shot it is very easy to take a Ruger #1 in .30/06 and have it rechambered.

--------------------
There comes a time when one must take a position that is neither safe, nor polite, nor popular -- but one must ask, "Is it right?"

Martin Luther King, Jr.

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xausa
.400 member

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

Re: Converting to 300 H&H Mag. [Re: SharpsNitro]
#156350 - 13/03/10 09:22 AM

I have a Model 70 .22 Hornet which was converted to .222. This is a procedure that Griffin & Howe advertised extensively back in the '50's. Actually, my rifle is quite accurate and a good rifle to practice with, since it looks and feels exactly like all my other unmodified Model 70's.

Conversely, I have a Model 70 .22 Hornet which I had converted back from .222. Not a difficult job, if you can find the correct extractor.

I also have a Model 70 in .30-.338 which started life as a .300 H&H. The previous owner had it fitted with a .30-'06 barrel, which he then had rechambered to .30-.338. He wanted the extra room in the magazine to load the bullets out to maximum length. Shoots great!

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Woodbeef
.275 member

Reged: 30/12/06
Posts: 82
Loc: Badlands of Alberta

Re: Converting to 300 H&H Mag. [Re: xausa]
#156450 - 14/03/10 02:06 PM

I`ve picked up a Winchester Super Express in 375 H&H. I plan on rebarreling it.

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SharpsNitro
.375 member

Reged: 12/08/08
Posts: 729
Loc: Arizona, USA

Re: Converting to 300 H&H Mag. [Re: xausa]
#156498 - 15/03/10 03:31 AM

Quote:

I have a Model 70 .22 Hornet which was converted to .222. This is a procedure that Griffin & Howe advertised extensively back in the '50's. Actually, my rifle is quite accurate and a good rifle to practice with, since it looks and feels exactly like all my other unmodified Model 70's.

Conversely, I have a Model 70 .22 Hornet which I had converted back from .222. Not a difficult job, if you can find the correct extractor.

I also have a Model 70 in .30-.338 which started life as a .300 H&H. The previous owner had it fitted with a .30-'06 barrel, which he then had rechambered to .30-.338. He wanted the extra room in the magazine to load the bullets out to maximum length. Shoots great!

I didn't know that, thanks for the history lesson. The one at my shop definitely was not a G&H job, it looks like the main tools used were a Dremel and bench grinder.

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Nick_Adams
.300 member

Reged: 20/12/03
Posts: 148
Loc: USA

Re: Converting to 300 H&H Mag. [Re: WyoJoe]
#167082 - 01/09/10 07:58 AM

Quote:

You can find several listed on Gunbroker.

Also if you want a single shot it is very easy to take a Ruger #1 in .30/06 and have it rechambered.

Or you can just buy a Ruger #1 chambered for the Super .30 (.300 H&H) ...

Edited by CptCurl (11/09/10 04:32 AM)

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BFaucett
.333 member

Reged: 13/01/04
Posts: 449
Loc: Houston, Texas

Re: Converting to 300 H&H Mag. [Re: Nick_Adams]
#167109 - 02/09/10 03:13 PM

Quote:

Or you can just buy a Ruger #1 chambered for the Super .30 (.300 H&H) ...

Yep!

The seller's photos of my rifle:

From Ruger's website:

I received mine a couple of weeks ago. I haven't even shot it yet. Heck, I haven't even mounted the scope yet.

Cheers!

-Bob F.

Edited by CptCurl (11/09/10 04:33 AM)

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tophet1
.400 member

Reged: 15/09/07
Posts: 1873
Loc: NSW, Australia

Re: Converting to 300 H&H Mag. [Re: BFaucett]
#167111 - 02/09/10 03:49 PM

I have a Ruger No.1S on order in .30 Super. I can hardly wait.

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szihn
.400 member

Reged: 24/06/07
Posts: 2116
Loc: Wind River Valley, Wyoming

Re: Converting to 300 H&H Mag. [Re: tophet1]
#167138 - 03/09/10 01:40 PM

I am still a fan of the Mauser M-98action.
I have made several 300 H&Hs on them in the past. It involves some metal work to open up the magazine, lap the bolt back until the 3rd lug bears and heat treat the action and bolt, but the results have always been worth it to me. I have made some very fine classic rifles that way, and the 300 H&H is a TRUE classic. Made this way, you can seat the bullets out where they are supposed to be, and the ballistics lack very little if anything in comparison to the Winchester of Norma round.

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Isopeura
.224 member

Reged: 01/06/08
Posts: 36
Loc: Finland

Re: Converting to 300 H&H Mag. [Re: szihn]
#168138 - 21/09/10 02:34 PM

I've made one Mauser conversion to .300 H&H using the Zastava action for .375 H&H. This took a lot of finishing to feed properly but the end result was good. Anyway, I prefer the old Sako in many ways and build my next one on one of these. I took Sako AV in .375 H&H and rebarreled it to .300 H&H and it was ready to rock after that. Still my favorite rifle and the one I use the most.

For a project, I'd choose any old Sako. If you look at the left side of the receiver, you´ll see the model marking of the receiver. I prefer L61R and AIII in my projects but AV is also nice. Anyway L61R and AIII have better parts, in my opinion. Still, I'd have any of these in a magnum chambering, so I wouldn't have to work with the bolt face and the magazine box/feed lips. If you have any of these rifles in any magnum caliber and you decide to rebarrel it to .300 H&H, you'll get an easy job. More than likely the end result will feed the sleek .300 better than it did the original cartridge.

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