![]() ![]() pay close attention to that as it will influence feeding reliability and PRESSURE. One detail that is very important in handloading is cartridge overall length. case length is not something to worry about - of course now i've said that i'll regret it. ![]() and i'm one of those types who loads whatever i pick up off the ground. but the other 100k+ of semi-auto brass (of most calibers) has been fine, in that i've not experienced anything too long or short that has caused a malfunction. both were anonymously short by about 2 millimeters. both were new cases, one Winchester and one Starline. i can only think of 2 that i've run into, both were 38 Super. many of us experienced folks (geezers) have loaded and shot well in excess of 100K rounds and never come across one. only anomalies matter, and they are extremely, extremely rare. (don't get me wrong, it's good that you're paying attention to detail because that matters in handloading.) case length for semi-automatic pistols tends to be a non-issue. should you decide to test that, let us know how it turns out.Įdited to add that many folks new to the reloading game pour over the manuals and make note of case overall length dimensions and some other details as well, that turn out to be non-issues. i would suspect, though can't say definitively, that load selection (powder, primer, bullet) will have a much larger impact on accuracy than brass length. but how much of a difference in length is required to make a perceptible change in accuracy is uncertain, though maybe somebody out there has an answer. That said, if you're trying to squeeze the max of accuracy from your pistol then maybe case length is an issue. a few thousandths here and there doesn't matter for most guns (probably 99.99% of them). it is probably generally the case that brass fired in semi-automatic pistols does not change length significantly in either direction over it's useful lifetime to present a problem for the majority of users. i can't recall seeing any posts that someone had said that's happened to them because of brass length issues, though it may have happened and either they didn't report it or interpreted as a different kind of failure or whatever. this will depend on the length of the brass, the chamber dimensions, and the fit of the barrel. brass that is too long could prevent the slide from going all the way forward = out of battery. tiny differences as you've noted won't make a significant difference in the type of accuracy that is required for that type of shooting.īrass that is too short, and i mean waaay too short, will slip a little farther into the chamber to the point where the extractor grabs it and prevents it from slipping any farther. the typical IPSC shooter, which probably describes a majority of the folks on this forum, is less concerned about getting the utmost accuracy from their ammo since their targets are large, close and they're shooting fast. the most import is whether it functions in your gun. Note: Pacific made the original long ago.Part of the answer comes down to practical issues. ![]() My SWAG is the Large Female Cutter for Quick Trim is what you need. Note: the Deluxe Quick Trim case trimmer uses only one size of the male chamfer blade, but there are two sizes for the outer chamfer. Note: Collet #2 is used only with Original and Power Case Trimmers, NOT with the Classic Case Trimmer.ĭeluxe Quick Trim Case Trimmer 90437 It is hard to find on Forster's own site, which should show how widely it was used. Note: The CTB102 DOES exist, and YES, you need it. RCBS Trim Die for 9mm Luger 20565 Įxtended shellholder 57171-Ext SH-16 įorster Original Case Trimmer Note! Requires short base 4⅝" long (p/n CTB102) This is NOT to wade into the heated discussion over trimming or not trimming 9x19. ![]()
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