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I am in the process of preparing all my .243 brass. I have sorted according to brand and since I have more R-P brass I started resizing them and then measuring. In doing that I found most were close to 2.045 inches (the trim to length according to Lyman is 2.035). Some were right in the middle of the range but I am going to trim everything to 2.035. Surprisingly, some cases measure as short as 2.025 and I do not think I have ever trimmed any cases shorter than the Lyman trim-to-length so I do not know how this happened. This brings up a question or two: 1. Should I load the shorter cases just like the ones I will trim? Should that give me accuracy issues due to some of the cases being short? 2. How important is it to trim all cases to exactly the same length? Often a case will be , let’s say right in the middle between trim -to-length and the maximum case length, what kind of difficulty might me encountered with cases that are within specs but vary 8 to 10 thousands in length? I am not any kind of match target shooter, just minute of deer/pig is good for me but I do want to be as accurate as possible. Any suggestion appreciated. | ||
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Hunting.... it's not everything, it's the only thing. | |||
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Eight to 10 thousandths? It will make NO difference in a hunting cartridge. As long as they are not over length, I do not care, and it has no effect on my rounds killing stuff. | |||
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to clarify, within reason, a little short neck won't have meaningful impact on a hunting rifle - too long COULD cause pressure issues, but that's in an extreme case Loading them to the same OAL is more important opinions vary band of bubbas and STC hunting Club Information on Ammoguide about the416AR, 458AR, 470AR, 500AR What is an AR round? Case Drawings 416-458-470AR and 500AR. 476AR, http://www.weaponsmith.com | |||
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I'm a weirdo so I'd trim everything to the middle and everything shorter than that to the short side and keep them separated. jus sayin,,, but after you fire them they'll all come out a bit shorter than they are now. | |||
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Do you crimp? If you do, the shorter necks may not crimp as well as the "correct" ones. This may or may not cause issues. | |||
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I've got a Redding case trimmer and find it dodgy to use. It seems possible to set up with a smaller-than-correct diameter on the universal shell-holder, after which if you grab a case with the correct one an overly short case may result. If case trimmers could be trusted not to do that, we'd have one less issue to worry about. | |||
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As far as Im concerned the only accurate way to trim is with a file trim die..I use these o handguns and rifle cases I intend to crimp such as my 30-30, 25-35, 348 Win. Your reloading manuals clarify all this, In your case Id probably just trim what the reloading books minimum suggests and trim all rounds to that then ever reload fired measure it and just trim the too long ones as you go. Ray Atkinson Atkinson Hunting Adventures 10 Ward Lane, Filer, Idaho, 83328 208-731-4120 rayatkinsonhunting@gmail.com | |||
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For ANY lever action calibers, crimping is mandatory with tubular magazines. Even a good idea with the 95 Winchester. A very handy if not indespensible tool is the Lee factory crimp die. Really works well. Avatar | |||
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