I'm loading new Starline brass. Ran through my Hornady sizing die.
Longshot powder 7.8, 8, 8.2 grains. 5 rounds each.
CCI large pistol primers.
Lyman flaring die.
Montana Bullet Works 200 grain https://www.montanabulletworks.com/p...-200gr-wfn-gc/
OAL at 1.25"
Finished with Lee FCD to remove flare.
As a quick check, I did a "plunk test" using my S&W M&P 4.6" 10mm barrel.
They drop in easy, but I can't really tell if the bullet is interfering with the bore. They need just a light tap of my fingernail to drop out of the chamber. I also pushed as hard as I could on the cartridge into the chamber with my thumb and cannot see any deformation or marks on the bullet. Am I possibly having them stick a bit on the bullet lube that pushed out of the mouth during seating?
Any thoughts or advice?