21 April 2012, 19:31
Bobby B..45 ACP case length?
While I've been reloading rifle cartridges for about 35 years, I'm new to reloading for pistol cartridges.
I recently purchased a Sig Match Elite in .45 ACP. I also bought some Hornady brass. According to the Nosler manual, trim length is .898". However, some of my cases are as short as .895" and some as long as .900". Obviously, I can trim the longer cases down to .898", but what is the correct way to handle the shorter .895" cases?
Also, what I've done so far is to sort out cases which are .896-.897" and loaded them. Is the acceptance of this range in length problematic for proper headspacing or anything else.
Bobby B.
Not to speak for everybody, but most don't trim auto loader cases. I have trimmed some revolver brass for roll crimp consistancy depending on what it's for.
21 April 2012, 20:49
243winxb SAAMI Measurements Never seen a case over the maximum of .898" The minimum chamber (hard to find) is .898" so i feel all your brass is OK to use/shoot without any trimming. The gap between the barrel hood & bolt face can easly be .002" I have never had to trim a 45 acp. For best accuracy, the longer the brass the better as it headspaces on the case mouth. The taper crimp should be just enough to take out the bell/flare, plus maybe a hair more for the rounds to chamber. Brass can be as short as .888" and still be usable.
Didn't finish my post this morning. For the short brass just load it. The extractor will hold the case in place.
22 April 2012, 09:53
Bobby B.Thanks guys, You took a load off my mind. When it comes to reloading, I believe in safety first.
Bobby B.
23 April 2012, 23:38
bradheI have never trimmed a 45 acp case in ~120,000 rounds over 30 years. (I was one of the original serious IPSC shooters). Even the bullseye guys generally don't bother. There was a test some years ago where one of the bullseye guys meticulously prepared new brass and loads and compared it to ones done on random range pickups. Accuracy was about the same. Just load them and shoot them.