Armory Sponsor
Posted: 10/26/2009 12:42:55 AM EDT
| I loaded some 32 Remington shells for use in an old model 8 Remington. I started with 30g IMR 4064 and went to 33g. The fired cases all had backed out primers but no flattened or cratered ones. I was using brass professionally formed from .30 rem cases. I don't see it as a pressure problem and the primers all seated nicely when I primed the cases. Any thoughts/ ideas/ pet loads? |
| I don't load the .32, but in my experience, if you see primers backing out without pressure signs, it is sometimes due to the cases being sized excessively. In other words, the shoulder might have been set back further than your chamber dimension calls for. This will result in a situation similar to excessive headspace. |
| Most of the time backed out primers are a sign of underpowered loads. All primers back out during firing. Case expansion reseats them. When they get flattened, they were driven back in too fast and mushroomed the edges before the primer got reseated. Switch to a faster powder or stiffen that load a bit. |
|
Quoted:
Most of the time backed out primers are a sign of underpowered loads. All primers back out during firing. Case expansion reseats them. When they get flattened, they were driven back in too fast and mushroomed the edges before the primer got reseated. Switch to a faster powder or stiffen that load a bit. BINGO! |
|
Thanks for the info.
I wouldn't mind stiffening the load a bit anyway. The gun shoots low and the rear sight is up as high as it will go. Maybe I'll kill 2 birds with one stone with more velocity. There isn't any data for .32 Remington in my Lyman or Speer handbooks so I went with 32 special data, which is supposedly interchangeable according to one of those books. It's a rimless semi auto but recoil operated as opposed to gas operated. It has never jammed in 30 years that I know of, but it has a penchant for shooting the legs out from under deer for my dad. Maybe I'll have to get him a lower front sight post but that's a topic for another post! I'll give it a "shot" |
Armory Sponsor