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

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skeetshooter1
.224 member

Reged: 01/05/05
Posts: 17
Loc: Scotland U.K.

375 loads
#30507 - 04/05/05 04:09 PM

What do people think about h-4350 and a 300 grain swift a frame as a mixture for the 375 H+H

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475Guy
.400 member

Reged: 22/08/03
Posts: 1088
Loc: Kali, US

Re: 375 loads [Re: skeetshooter1]
#30514 - 04/05/05 10:42 PM

H4350 is as good as any for top loads in the 375. Only problem with the powder is that you HAVE to use a drop tube to get published amounts in the case. I find it to be a major PIA when doing this.

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Lo do they call to me,
They bid me take my place among
them in the Halls of Valhalla,
Where the brave may live forever.

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new_guy
Sponsor

Reged: 10/08/04
Posts: 581
Loc: Texas

Re: 375 loads [Re: skeetshooter1]
#30519 - 05/05/05 12:14 AM

H4350 has been great in my 375s (3 of them). I just received 8lb of it.

475guy is right, to get the published max in the case (@81gr), you will need a drop-tube. BUT I've been able to reach acceptable velocities in my 375s with significantly less powder than the max load. So I say that you should definitely back off 10% of max load when working up a load.

My target velocit is about 2500-2540 fps (I personally don't see a need for extra wear & tear of the advertised 2650fps) and I'm able to reach my target velocities with 74-76gr of H4350 depending on the bullet used.

Overall, it gives good velocities at great pressures and it's about the slowest burning powder that you can get enough of into the case - vs the 4831s.

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www.heymUSA.com

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butchloc
.300 member

Reged: 18/12/04
Posts: 230
Loc: faribault mn

Re: 375 loads [Re: skeetshooter1]
#30532 - 05/05/05 04:50 AM

great combo - also goes for the nosler partition and barnes solids, & barnes X bullet line (270 gr)

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Scott
.275 member

Reged: 11/01/05
Posts: 89
Loc: Florida, USA

Re: 375 loads [Re: skeetshooter1]
#30558 - 05/05/05 02:00 PM

Another powder that I have had great success with is Reloader 15, for both 300 grain Barnes X and solids and 235 grain Barnes XLC and Speer Hot-Cors.

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Metswedi
.300 member

Reged: 20/01/05
Posts: 156
Loc: Yorks. England

Re: 375 loads [Re: Scott]
#30581 - 05/05/05 10:30 PM

ditto for Reloader 15, my chosen load is with Vhitavuori N140 which seems very close to R15. 70grns giving me bang on 2500fps with various 300grn bullets including solids.
Very forgiving powder. One of my favourites.

--------------------
Perfer et obdura!

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atkinson6
.375 member

Reged: 26/01/04
Posts: 678
Loc: Idaho

Re: 375 loads [Re: Metswedi]
#31872 - 24/05/05 10:26 AM

I have had my best luck with IMR-4064 and old standby with 375 shooters, and RL-15 is probably my favorite powder over all....It just depends on which one works with a certain rifle, as to which I choose.

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jro45
.300 member

Reged: 25/12/03
Posts: 192
Loc: DE, USA

Re: 375 loads [Re: atkinson6]
#31932 - 25/05/05 01:21 AM

I use imr4350 and have shot three bullets thru the same hole useing this powder at 200 yds [270gr bullets]. So its real acturate. and I get 2710 fps with 270 gr bullets and with 300gr bullets I get 2600 fps.

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butchloc
.300 member

Reged: 18/12/04
Posts: 230
Loc: faribault mn

Re: 375 loads [Re: jro45]
#32200 - 28/05/05 06:17 AM

4350 is probably the classis powder for 375

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JDD
.224 member

Reged: 22/09/04
Posts: 39

Re: 375 loads [Re: butchloc]
#32358 - 30/05/05 10:50 AM

I have had great luck with H4350 AND 270 BARNES TRIPLE SHOCKS. I have settled on 74,5 grs. only because at 79 grs I had problems with the bullets being pushed out before I could crimp them. with a 200 yrd zero I am 12 " low at 300. 70 grs of H4895 give about the same drop at 300 and is listed as a 2700 fps by barnes. How do you guys deal with compressed powder charges.I am useing lee collet dies
and can't seem to get enough neck tension.

JD

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510Wells
.275 member

Reged: 16/11/03
Posts: 62
Loc: Gold Bar, Wa.

Re: 375 loads [Re: JDD]
#32449 - 31/05/05 08:13 AM

You might try the Lee Factory chrimp die. Or use RL15, it has room for more than my Max. load.

--------------------
The only constant is change.

Member DRSS

Edited by 510Wells (02/06/05 12:53 PM)

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