JeepHammer
SHOOTER
I agree, I don't think I've ever trimmed a straight wall pistol case.
The pistol accuracy guys can do a better job than me, I've always been a rifle shooter.
I just load them over & over till they crack, and pitch them in the scrap bucket.
With 99% of rifle cases it's simply making sure the brass is shoulder sized (datum length) to fit the chamber,
Then check the total case length so the neck isn't too long, and you are off to the races.
Honestly, with most rifle ammo, I simply size and trim to minimum, and don't touch them again till they crack.
All the neck does is hold the bullet centered with the bore of the barrel, and it's secondary job is to expand when fired to slow some gas down.
Minimum trimming means you don't have to trim again, or at least for a VERY long time.
I fussed FOR YEARS with neck/case length and when the data simply didn't pan out, I stopped (grudgingly).
The data/accuracy hasn't changed, so I personally don't think it's that important if it's not too long.
I learned from bench rifle shooters, and they are the "Micrometer Everything" bunch, no detail too small...
It took me a while to compile my own skill sets & my own data, live & learn.
Rimmed, straight walled pistol is where I start students.
They are just stupid hard to screw up, big rim means they lock well into the case holder, and you can't jam one in the sizing die.
If you do screw up, it's easier to pull those bullets for another try.
EVERYONE WILL SCREW UP, KEEP THAT IN MIND!
There are two kinds of reloaders, ones that admit they screwed up, and liars.
The seating & crimp combo dies will get most people, to function at once mean two adjustments at once, so you need to sneak up on the seat & crimp together with a few 'Dummies' to get it right when you start.
It's not officialally a 'Screw Up' when you use a dummy!
The pistol accuracy guys can do a better job than me, I've always been a rifle shooter.
I just load them over & over till they crack, and pitch them in the scrap bucket.
With 99% of rifle cases it's simply making sure the brass is shoulder sized (datum length) to fit the chamber,
Then check the total case length so the neck isn't too long, and you are off to the races.
Honestly, with most rifle ammo, I simply size and trim to minimum, and don't touch them again till they crack.
All the neck does is hold the bullet centered with the bore of the barrel, and it's secondary job is to expand when fired to slow some gas down.
Minimum trimming means you don't have to trim again, or at least for a VERY long time.
I fussed FOR YEARS with neck/case length and when the data simply didn't pan out, I stopped (grudgingly).
The data/accuracy hasn't changed, so I personally don't think it's that important if it's not too long.
I learned from bench rifle shooters, and they are the "Micrometer Everything" bunch, no detail too small...
It took me a while to compile my own skill sets & my own data, live & learn.
Rimmed, straight walled pistol is where I start students.
They are just stupid hard to screw up, big rim means they lock well into the case holder, and you can't jam one in the sizing die.
If you do screw up, it's easier to pull those bullets for another try.
EVERYONE WILL SCREW UP, KEEP THAT IN MIND!
There are two kinds of reloaders, ones that admit they screwed up, and liars.
The seating & crimp combo dies will get most people, to function at once mean two adjustments at once, so you need to sneak up on the seat & crimp together with a few 'Dummies' to get it right when you start.
It's not officialally a 'Screw Up' when you use a dummy!
