Can be done but be aware that the bullets are most likely crimped and may be hard to remove.
New bulk 8mm overpressure
- Thread starter Stripes
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Can be done but be aware that the bullets are most likely crimped and may be hard to remove.
Can't find my vernier caliper to get a real measurement.
As stated before the cases get very long after firing. But now that I've pulled a bunch apart, (the bullets come out easy) I see that they are longer even before firing. Maybe they used once fired brass and did not trim..... The little dents and scratches here and there would collaborate my "once fired" theory. Maybe that's why they are hard to extract.
As stated before the cases get very long after firing. But now that I've pulled a bunch apart, (the bullets come out easy) I see that they are longer even before firing. Maybe they used once fired brass and did not trim..... The little dents and scratches here and there would collaborate my "once fired" theory. Maybe that's why they are hard to extract.
Chronographed a few rounds today.
Pulled the powder and projectile.
Loaded it in S&B cases with CCI 200 large rifle primers.
Played around with the load a bit.
40 grains --------- 2399 fps
42 grains --------- 2499 fps
43 grains --------- 2511 fps
44 grains --------- 2572 fps
44 grains --------- 2611 fps
I will stick with the 42 grains.
Even with 44 grains, primers look fine, and no hard extraction. Smooth as butter. The one that clocked in at 2625 had the slightest beginnings of a cratering primer.
Pulled the powder and projectile.
Loaded it in S&B cases with CCI 200 large rifle primers.
Played around with the load a bit.
40 grains --------- 2399 fps
42 grains --------- 2499 fps
43 grains --------- 2511 fps
44 grains --------- 2572 fps
44 grains --------- 2611 fps
I will stick with the 42 grains.
Even with 44 grains, primers look fine, and no hard extraction. Smooth as butter. The one that clocked in at 2625 had the slightest beginnings of a cratering primer.
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If that's with a 198 gr bullet, then the powder is fairly fast - between IMR3031 and H4895 I would say.
I'm assuming that 44.0 grs is what was found in the pulled down ammo. If so, I'd call it a Max Load, but safe in a Mauser, as it is likely near 60K psi.
Yeah, I reused the 198 grain projectile and powder. I might reload the still primed cases one day, but I can`t trim them at the moment as my trimming set up only works on boxer unprimed cases (LEE).
German ww2 specs:
44 grains for the 197.5 bullet in a brass case.
Velocity is listed at 2477 fps, and pressure at 48500 psi.
This square powder is called (Nz.Gew.Bl.P)
Interesting fact:
55800 psi was the chamber pressure of the tungsten cored AP round, which weighed 194.5 grains and left the muzzle at 2870 fps.
This was achieved with a different powder called (Np.Gew.R.P)
That would have some pretty stout recoil. Even that`s below the CIP maximum.
German ww2 specs:
44 grains for the 197.5 bullet in a brass case.
Velocity is listed at 2477 fps, and pressure at 48500 psi.
This square powder is called (Nz.Gew.Bl.P)
Interesting fact:
55800 psi was the chamber pressure of the tungsten cored AP round, which weighed 194.5 grains and left the muzzle at 2870 fps.
This was achieved with a different powder called (Np.Gew.R.P)
That would have some pretty stout recoil. Even that`s below the CIP maximum.
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