I have been looking at some old 9mm rounds I have and pulling bullets and examining.
I decided to disassemble a Winchester M1152 round. This is the 115 grain FMJ flat nose that the military is now beginning to utilize.
The head-stamp was WMA ‘19. The primer was crimped in the casing and I saw no case mouth sealant. When I pulled the bullet with my kinetic bullet puller, it took very few strikes and was “easy”.
I then disassembled a Winchester M882 round. This is a 124 grain FMJ, that is a legacy military load
The head-stamp was WMA ‘18. The primer was crimped in the casing and I saw no case mouth sealant. Effort with the kinetic bullet puller was moderate.
Lastly, I disassembled another Winchester M882 round
The head-stamp was WCC ‘11 (? It’s not in front of me right now). The primer was crimped in the casing and there was black case mouth sealant. Took more effort than just about any other round I pulled, except Federal 147 grain HST.
Obviously manufacturers change their products as they see fit. But is the sealant being deleted from this type of ammo? Or is the M1152 simply being loaded in a “civilian” version without all the good stuff?
I don’t have my chronograph with me, but hope to rectify that soon and compare the loads. Thoughts? Comments? Outrageous remarks?