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Paul B. · May 26, 2025, 04:44 PM

".3545" is within SAAMI specs. The spec is .3555" - .003.

That said, Berry's Bullets claims their plated 9mm bullets are .356", which is actually over the SAAMI spec."

I won't argue that point but I will argue about barrel dimensions. Slug the barrels on a few 9MMs and it can be an interesting experience.

Ruger P85 groove diameter .3562"

Taurus PT99 Groove diameter .3569"

S&W 6906 Groove diameter estimated to be .3565" Estimate due to 5 groove and lands. Need a special micrometer to measure and I done have one.

I only shoot my home cast bullets in my handguns and for all three I use .358". Bullet size to that diameter will chamber freely and work just fine in my guns. Naturally, YMMV.
Paul B.

May 26, 2025, 04:44 PM	#15
Paul B. Senior Member Join Date: March 28, 1999 Location: Tucson, AZ Posts: 3,932	".3545" is within SAAMI specs. The spec is .3555" - .003. That said, Berry's Bullets claims their plated 9mm bullets are .356", which is actually over the SAAMI spec." I won't argue that point but I will argue about barrel dimensions. Slug the barrels on a few 9MMs and it can be an interesting experience. Ruger P85 groove diameter .3562" Taurus PT99 Groove diameter .3569" S&W 6906 Groove diameter estimated to be .3565" Estimate due to 5 groove and lands. Need a special micrometer to measure and I done have one. I only shoot my home cast bullets in my handguns and for all three I use .358". Bullet size to that diameter will chamber freely and work just fine in my guns. Naturally, YMMV. Paul B. __________________ COMPROMISE IS NOT AN OPTION!