Armory Sponsor
Posted: 7/23/2011 11:17:49 AM EDT
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I've been trimming brass all day and started to ponder how important it is to do this on brass that is within the spec length. Has anyone done a study on trim length and the effect on a particular load? Of course if you crimp brass that is differen't lengths, you'll get different crimps. Other than that, how important is it to keep your brass the same length? I have some FC brass that is too short to trim. I typically load this for plinking rounds and don't worry about it.
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| Looking for loopholes? I always trim my brass because I like knowing it's the right length and uniform. I have my doubts as to whether there is any effect on accuracy. I have nice trimmers so it's actually easier to just trim them rather than measure each case. |
| What kind of accuracy are you looking for? For training ammo used at fairly close range, it isn't going to make that big of a difference. If you're looking to load long range ammo or you care about shaving fractions of an inch off your group size, consistency in the name of the game and differing neck lengths will result in slightly different bullet pull force. Different pull force means different powder burn and different velocity. |
| Good point on the pull force. My intent is to skip trimming on my 2nd and perhaps 3rd reload. I shoot @ 200yd or closer so long range isn't really an issue. With my AR, I can typically group at 1 MOA with a good load and careful shooting. For this senario, I question the value in trimming every time I load a cartridge. I'll put together some rounds and post my results. |
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If you are shooting at less than 200 yards don't bother. Just make sure to check that the case length is safe for your chamber.
This might be useful. B |
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Quoted:
If you are shooting at less than 200 yards don't bother. Just make sure to check that the case length is safe for your chamber. This might be useful. B That was cool. |
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Quoted:
If you are shooting at less than 200 yards don't bother. Just make sure to check that the case length is safe for your chamber. This might be useful. B I can't get the link to open. |
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