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The Range
Ammo & Reloading
Case length
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<blockquote data-quote="Aries" data-source="post: 3604085" data-attributes="member: 44328"><p>1) They will stretch a little, but not much and I've never heard or read of anyone who thought trimming straight wall cartridges were all the necessary. Semi-auto rounds that headspace on the mouth of the case, maybe but I doubt it. They'll probably never stretch THAT much. Rimmed cases, I can't imagine stretching enough to ever matter, they'll likely split before they get that far. I load 9mm and .45 acp and have never trimmed cases.</p><p></p><p>2) Most of my experience is reloading handgun calibers. I seriously doubt .008 is significant, and I'd rather they be short than long (within reason). Cases don't get shorter as you shoot them, so that one specifically has never been SHORTER than 1.267 so whoever made it felt that was within specs. I wouldn't be concerned at all, and I'll be surprised if you ever find one that's too short to use, unless someone over trimmed it.</p><p></p><p>3) Not sure on this one, I think COAL will more likely affect function (if it's too long to fit in a magazine) or accuracy (jump to rifling). As long as it headspaces on the shoulder and not the rim it shouldn't be critical, but if they are over max length I would trim them, as much for uniformity as anything.</p><p></p><p>All just my opinions, and smarter people than me will provide answers as well.</p></blockquote><p></p>
[QUOTE="Aries, post: 3604085, member: 44328"] 1) They will stretch a little, but not much and I've never heard or read of anyone who thought trimming straight wall cartridges were all the necessary. Semi-auto rounds that headspace on the mouth of the case, maybe but I doubt it. They'll probably never stretch THAT much. Rimmed cases, I can't imagine stretching enough to ever matter, they'll likely split before they get that far. I load 9mm and .45 acp and have never trimmed cases. 2) Most of my experience is reloading handgun calibers. I seriously doubt .008 is significant, and I'd rather they be short than long (within reason). Cases don't get shorter as you shoot them, so that one specifically has never been SHORTER than 1.267 so whoever made it felt that was within specs. I wouldn't be concerned at all, and I'll be surprised if you ever find one that's too short to use, unless someone over trimmed it. 3) Not sure on this one, I think COAL will more likely affect function (if it's too long to fit in a magazine) or accuracy (jump to rifling). As long as it headspaces on the shoulder and not the rim it shouldn't be critical, but if they are over max length I would trim them, as much for uniformity as anything. All just my opinions, and smarter people than me will provide answers as well. [/QUOTE]
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