Hello! I need a little help. I ordered sample packs of Blue Bullets 125 lead CN and SNS 125gr lead FP, to load in 9x19. I had data for 125gr lead, no designation as to profile, and it gives a 1.125” COL. The Blue Bullets seat to that just fine. Pass gauge test, plunk test, and feed from the mag fine. The SNS bullets have a crimp groove, that when seated to, put the COL at 1.05”, which is quite a bit shorter. These also pass gauge, plunk, and feed fine. Being that 9mm is pressure sensitive, that worries me. After measuring projectiles, it appears that when seating the SNS projectile to 1.05”, they are around .023” deeper in the case than the Blue Bullets when they are at 1.125”.
Is it safe to load to the 1.05” and use the same data, and start low and work up? Or should I increase the OAL to 1.073” to make up for the added seating depth and equal out available case capacity?
Is it safe to load to the 1.05” and use the same data, and start low and work up? Or should I increase the OAL to 1.073” to make up for the added seating depth and equal out available case capacity?