Primer pocket differences

[Steve]

I primed 2,000 forty s&w cases this week while watching TV. This run really showed why mixed range brass can cause priming problems on a progressive press.

Do to primer pocket problems….. (crimped, tight, no chamfer, loose) I ruined probably only about 10 primers, quite a few I had to wiggle the case a little to get them started. Some didn’t want to start , I can feel that so I stop before ruining the primer, cut a little chamfer on the primer pocket and it would start right in.

All of the above mentioned problems would have created a problem on the press, that is why I prime off press. Also I hate pulling bullets.

If I ever start priming on the press again I think I will prepare pistol primer pockets the same as I do rifles…. (swag, true the bottom, ream/chamfer) Just to avoid all the problems.

[Ranch Dog]

I use a K&M Primer Pocket Uniformer on all my rifle and revolver brass. With my effort to move priming back to the Load-Master, I'm going to start using the appropriate size uniformer on all my brass.

[akuser47]

That is true primer pocket uniformed is necessary if shooting range pick up. Alot of variables that we cannot control.
The uniformer let's you remove this negative from the equation.

[Fyodor]

I got some nine nice vintage .45Auto military boxes nearly for free, with the empty brass still in them. I bought an RCBS primer pocket swager to get rid of the crimps, but this doesn't seem to work as I expected it. These cases always cause problems in the press, so I seperated them and don't use them. Does anyone have some experience with the RCBS tool, and can tell me what I'm doing wrong? I pull the lever until my bench flexes, and the stem needs a good kick to become loose from the primer pocket again, but still the primers won't start correctly.

[daboone]

I use the RCBS Trim Mate with its accessories. Having all the different tools rotating on one small footprint unit is VERY convenient. There are several competitor's spin-off s on the market today.

[Steve]

I got some nine nice vintage .45Auto military boxes nearly for free, with the empty brass still in them. I bought an RCBS primer pocket swager to get rid of the crimps, but this doesn't seem to work as I expected it. These cases always cause problems in the press, so I seperated them and don't use them. Does anyone have some experience with the RCBS tool, and can tell me what I'm doing wrong? I pull the lever until my bench flexes, and the stem needs a good kick to become loose from the primer pocket again, but still the primers won't start correctly.

I use the RCBS swaging tool, then follow with a Lyman PP reamer which cuts the proper chamfer to help the primer start in properly.

I go through so much pistol brass that I don't recover, the time to prep primer pockets would be too great.

I prep all my rifle brass and still prime it using the RCBS bench primer. I enjoy that time as much as reloading.