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7.62x54R ???
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<zasgar>
posted
Does anybody have a good load for 7.62x54R ??
 
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one of us
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Zaz,

what gun are you using and what bullets do you plan to use? i'll check up on some loads in our Hornady manual

 
Posts: 1723 | Location: wyo | Registered: 03 March 2001Reply With Quote
<zasgar>
posted
Mosin Nagant M1938 Carabine( not rifle )
 
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I'm going to give you load data for the 150gr, 165gr, and 168gr bullets. if you want loads for lighter or heavier bullets, drop a line.

The book's (hornady) slightly old, copy right 1980 so there maybe newer info that i'm not privy to.
Also, the rifle they used had a
31 1/2" barrel, so velocities may not match up exactly with yours. Anyway, without further interuption:
150gr spire point:
IMR3031 38.2gr (2400fps) 40.3gr (2500fps)
42.3gr (2600fps) 44.4gr (2700fps)
H4895 41.3gr (2400fps) 43.3gr (2500fps)
45.2gr (2600fps) 47.2gr (2700fps)
49.2gr (2800fps)
IMR4064 42.5gr (2400fps) 44.1gr (2500fps) 45.8gr (2600fps) 47.4gr (2700fps)
49.1gr (2800fps)
IMR4320 42.7gr (2400fps) 44.6gr (2500fps) 46.5gr (2600fps) 48.4gr (2700fps)
50.2gr (2800fps)
H380 44.0gr (2500fps) 46.3gr (2600fps) 48.6gr (2700fps) 51.9gr (2800fps)
53.2gr (2900fps)
Win760 49.0gr (2400fps) 50.7gr (2500fps) 52.4gr (2600fps) 54.1gr (2700fps)
55.9gr (2800fps)
165gr spire point:
IMR3031 36.7 (2300) 38.9 (2400) 41.1 (2500) 43.3 (2600)
H4895 39.9 (2300) 42.0 (2400) 44.1 (2500) 46.2 (2600) 48.3 (2700)
IMR4064 41.6 (2300) 43.0 (2400) 44.4 (2400) 45.8 (2500)
IMR4320 41.4 (2300) 43.3 (2400) 45.1 (2500)
47.0 (2600) 48.8 (2700)
H380 41.5 (2300) 43.5 (2400) 45.6 (2500) 47.6 (2600) 49.6 (2700)
Win760 47.2 (2300) 49.0 (2400) 50.7 (2500) 52.5 (2600) 54.2 (2700)
168gr HPBT
IMR3031 38.3 (2300) 40.5 (2400) 42.7 (2500) 49.5 (2600)
H4895 41.0 (2300) 43.3 (2400) 45.5 (2500) 47.8 (2600)
IMR4064 41.4 (2300) 43.4 (2400) 45.5 (2500) 47.5 (2600)
IMR4320 42.0 (2300) 43.8 (2400) 45.6 (2500) 47.5 (2600)
H380 41.6 (2300) 43.6 (2400) 45.7 (2500) 47.8 (2600) 49.8 (2700)
WIN760 47.7 (2300) 49.4 (2400) 51.1 (2500) 52.8 (2600) 54.5 (2700)

 
Posts: 1723 | Location: wyo | Registered: 03 March 2001Reply With Quote
<zasgar>
posted
quote:
Originally posted by Curtis_Lemay:
Also, the rifle they used had a
31 1/2" barrel, so velocities may not match up exactly with yours.

Thank you Curtis.
The problem with the Carabine is, that there is no data for it. The barrel in only 20.15" long. I will post the data to our "master reloader", but i guess he will have to put some effort in himself to develop own loads for the carabine.

MK

 
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<Paladin>
posted
...The usual rule of thumb is to calculate velocity loss at about 50 feet per second with the loss of each inch of barrel. However, this may not be entirely true when using the fastest powders.

If loading a carbine-length barrel, the usual practice is to refer to published data, then select the fastest listed powders and build from there. One way of confirming that a powder is too slow, if in the middle-range for burning speed, is to note whether it has an unusually noticable flash. Extra-slow powders do not necessarily have much flash, and the faster powders will have a limited flash depending on a lot of factors. That flash amounts to wasted powder....

Another comment: the 7.62x54Rmm has a case-shape and capacity closely similar to the 7.62x51mm NATO cartridge. It is reasonable to refer to data for that or the .308 Winchester, in shorter barrels, for a rough guide to approximate performances. However, the cartridges are NOT the same, and in any question, the data for the original cartridge must rule. Safety first.

In closing: several years ago, I chronographed the same reloads in the Russian Model 91 rifle, the Model 91/30, and their carbine. The loss in velocity dropped from .30-06 performance to ordinary .30-30 performance. Again, about 50 fps per inch of barrel-loss........

Paladin

 
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7.62x54R
"Modern Relaoding: Richard Lee, 180 gr 38.7 gr, 2.952" 2454 fps
I like the Sierra .311" dia 180 gr SPT bullets the best in my 91/30.

I have also used the Remington 180 gr bullets.

I can neck size the 7.62x54R cases by not resizing all the way. This is
in part possible because of the case design's steep taper.

Reloaded with neck sized cases, CCI 200, 2.843" OAL, and IMR4895 powder
shooting 3 shot groups:
40 gr 2.7" 41 gr 2" 42 gr 2.25" 43 gr >4" 44 gr 1.2" 45 gr 2.9" 46 gr
1.4" 47 gr >4" 48 gr 2.5" 49 gr 3.3" 50 gr 2.5" w/ sticky bolt

I reloaded again:
43.0 gr > 2" 43.3 gr 2.4" 43.6 gr 3.5" 44.0 gr 2.1" 44.3 gr 1.2" 44.6
gr 2.2" 45.0 gr 1.7" 45.3 gr 1.7" 45.6 gr 4.5" 46.0 gr 2" 46.3 gr 2.6"
46.6 gr 4.6" 47.0 gr 3.2" 47.3 gr 1.3" 47.6 gr 3.8" 48.0 gr 2.2" 48.3 gr
2.7" 48.6 gr 3"

I like Lapua brass much better than S&B. The S&B Boxer brass has two
problems:
1) the base of the primer pocket has too large a radius and needs
reaming.
2) The handloads are not as accurate as the original ammo.

The factory loaded ammo:
7.62x54R S&B soft point 180 gr. ammo 2" 3 shot groups at 100 yards

I have been getting the rifle on the paper with surplus ammo from

 
Posts: 2249 | Registered: 27 February 2001Reply With Quote
<BEJ>
posted
48.2gr. XMR 4350
41.5gr. IMR 4895

S&B case, REM primer, 180gr. Sierra (.311). Shoots great in an M39 and 91/30.

 
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<Cain R>
posted
Suggest you slug your barrel to make sure which bullet to use .308 or .311. I've got a Chicom carbine that prefers .308 165 gr Horn BTSP and a Finnish one that is better with .311 Sierra.
 
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I'm working up some loads for my M-44 that slugs at .316". I'm loading up some Speer 180 gr. RN with 42.5 grains of IMR4895, CCI 200 primers in once-fired Prvi Partizan brass. I'm hoping that the longer, slightly larger, flat-based bullets will stabilize better in the larger bore. I'm going to pick up some Hornady 150 gr. .312" PSP bullet at the gun shop this week for another recipe.

tom
 
Posts: 6 | Registered: 17 February 2009Reply With Quote
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