124gr PD JHP, only becasue I can't get Zero 124gr JHP as cheaply or as easily !
Mr. Wobbly, I want to thank you for your treatise on determining OAL. It was very helpful.
As there are so many bullet shapes available -- and very few of them are called out by name in loading manuals -- I'm on my own as to OAL.
I bought 1000 Bear Creek .45 230gr Hollow Base, Hollow Point moly coated slugs initially for my Long Colt. But they work in a .45ACP too, so I loaded a few up. But how to determine OAL with a flat hollow point?
Sure enough, when I was at the range, my Commander refused to go into battery. Cartridge was too long.
I returned home and went through your "Test Cartridge" process to find where the bullet hit the rifling, then shortened it up by at least 0.015", as you suggest. They all fit the barrel now, with a satisfying "plunk" or "tink" and fall out on their own. .
I need to do this same process with my multiple varieties of 9mm pills: FMJ, coated cast, JHP, Flat Nose. And my wife shoots .380 ACP. Lots of different bullets to seat properly.
It really the only way to assure reliable feeding.
Thanks again.