WrongHanded
Member
- Joined
- Jul 6, 2017
- Messages
- 4,771
While 4.9 isn't what I would consider a starting charge for coated which behave closer to lead than jacketed, 4.9 will be just fine at that OAL. In fact, I would shorten it up a hair to 1.260 to 1.265 OAL. 1.269 +/- might be problematic in some mags.
Loaded round looks real good.
Thank you Walkalong.
As it's only one round, I'll pull the bullet, reflair the case, reduce the charge (I'm thinking 4.5gr, but maybe lower?) and reseat the bullet for a shorter OAL. Seems like the Sellier & Bellot I've been shooting (which is the brass I'm reloading) is somewhere around 1.263". So I may just check a few more of those, and then seat to match.
Just FYI, crimp in an autoloading round can be critical as well... primarily because the round headspaces on the case mouth. Case length can factor in here, too, but I've never had a problem with case length in the .45ACP... and in fact have never trimmed a .45 case in my life. Having said that, and reading that you are coming off revolver cartridges, I would investigate a taper crimp die for your .45ACP. A roll crimp, most likely built into your seat die, will work, certainly, but too much roll crimp could possibly give you ignition problems, among other things.
Looking at your second photo, of your loaded round, it almost looks like the case mouth is still flared out (it may be the lighting or something else.)
I have a Lee factory crimp die. But wasn't sure how much was too much. And as I did recalled that the cartridge seats on the case mouth, I didn't want to crimp it so tightly it squashed into the bullet, and then wouldn't seat correctly.
Anymore info on correctly crimping with this die would be a great help.