Squaregrouper
Kragaphile
For those who have never loaded this, it is a very unforgiving round to load. The round headspaces on the case mouth. Combine that with precise neck bumping and a very short bottleneck for tension, everything has to be perfectly set for successful handloading.
Prior to getting my XL650, I reloaded on a Lee ABLP. I despise that priming system, so I would prime everything by hand. Thus, I had a hefty stash of .40 sized and primed .357 Sig brass. (It is the norm to size .357 Sig brass twice- through a .40 carbide die, then a .357 Sig die) On the press, my decapping pin has always been removed from my .357 Sig die because the brass was already primed.
I tuned the Dillon to load perfect .357 Sig rounds and loaded to my heart's content.
Fast forward to today... I ran out of primed brass and was down to decapped and .40 sized brass. Well, the Dillon priming system is much better than Lee's so I decided to prime on the press. The thing is, I ran across a few pieces that still had spent primers. Out of caution I installed the decapping pin to catch any brass that still had spent primers.
Welp, my dumb ass didn't confirm I reseated the sizing die tightly. About 150rds later, I noticed the die was loose and I wasn't getting proper shoulder bump. Most of the rounds failed my Lyman case gauge and over half failed the plunk test.
.
Prior to getting my XL650, I reloaded on a Lee ABLP. I despise that priming system, so I would prime everything by hand. Thus, I had a hefty stash of .40 sized and primed .357 Sig brass. (It is the norm to size .357 Sig brass twice- through a .40 carbide die, then a .357 Sig die) On the press, my decapping pin has always been removed from my .357 Sig die because the brass was already primed.
I tuned the Dillon to load perfect .357 Sig rounds and loaded to my heart's content.
Fast forward to today... I ran out of primed brass and was down to decapped and .40 sized brass. Well, the Dillon priming system is much better than Lee's so I decided to prime on the press. The thing is, I ran across a few pieces that still had spent primers. Out of caution I installed the decapping pin to catch any brass that still had spent primers.
Welp, my dumb ass didn't confirm I reseated the sizing die tightly. About 150rds later, I noticed the die was loose and I wasn't getting proper shoulder bump. Most of the rounds failed my Lyman case gauge and over half failed the plunk test.
.