wow!!! case weights!!!!!!!

kenneth carlson

kenneth carlson

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i was loading up some .45 acp today and wow i couldn't beleive the difference in the cartridge weights. and how i was getting a deviation of 20 grs. luckily before pulling all 400 rounds i decided to check my cast boolits weights, case weights etc. i have some a merc cases which weigh on average 100 grs each. then feds are close to 89 grs each, winchesters close to 87 grs each. old military brass 79-84 grs each. i guess what i am trying to say is weigh your cases before loading.i pulled the lowest and highest to double check charges but they were ok. so tommorow i am sorting all of my brass by brand then going to sort out by weight afterwards.kinda shocking when you weight one/first case at 298 grs, then the second comes in at 311 grs. just a little knowledge that i learned today and thought i would pass on.:cheers::cheers:
 
Meh. At the pressures .45ACP runs it makes no difference. If it makes you feel better, sort your brass by brand and even by weight among each brand.

Precision rifle shooters sort by weight and MAY see some beneifts, but for handguns it is a pointless exercise. YMMV


Mark
 
Cast bullets will always have a weight variance. I've not found the difference to affect close range accuracy worth mentioning. I agree with Mark above, sort your cases if you are looking for extreme accuracy. Case volume differs from manufacturers and case lots. With the .45 I wouldn't worry about pressures from different cases. Loadem up and have fun.
 
I recall reading some testing done by a shooter in the states, which came to the conclusion that case sorting did not make a significant difference in accuracy (and he was testing for bullseye shooting, not IPSC).
Saying that, I have taken to discarding any AMERC brass that comes my way. It has caused problems from primer pocket size, holding bullets, and general case splitting on one or two reloads.
Lots of other, much better, brass to use.
 
I don't even sort brass for .44 Magnum. I don't think anybody can shoot a handgun well enough to realize any benefit even if there was some accuracy to be gained.
 
I think kenneth's concern isn't with accuracy, but with being able to check whether a loaded round is double-charged by simply weighing it. If the brass isn't sorted by weight, then the extra weight of a double-charge will be masked.
 
mmattockx said:
Meh. At the pressures .45ACP runs it makes no difference. If it makes you feel better, sort your brass by brand and even by weight among each brand.

Precision rifle shooters sort by weight and MAY see some beneifts, but for handguns it is a pointless exercise. YMMV


Mark
Click to expand...

I tend to agree. Any advantage there might be to weighing cases only applies when shooting groups under conditions where small variation in velocity cause the group to open up. For example, at 1000 yards a variation of 25 fps can result in 2" of vertical spread. Thus in any sort of action shooting exercise, executed at short range, attempting to maintain single digit velocity spread is not something you could use to your advantage with a .45 auto.
 
agent_mango said:
I think kenneth's concern isn't with accuracy, but with being able to check whether a loaded round is double-charged by simply weighing it. If the brass isn't sorted by weight, then the extra weight of a double-charge will be masked.
Click to expand...

With typical charges in a .45, I think even small variations in bullet and brass weight would tend to mask a double charge anyway.
 
thank you agent tmango hat was my main concern. like i say i was thinking i was double charging but wasn't so ,i have been going through all of my brass(.223,30-06,308,9mm,45acp,357,30-30 and 44mag) main cartridges that i am currently shooting. and man i have on average a couple k of each. lots of work but will pay off in the long run as i don't have to wonder if i double charged or not.


as for accuracy i only sorted by weight for a few rifle rounds and found no big difference.
and like i say i thought it might be helpfull to new reloaders if they weigh the rounds afterwards.(my little trick, every cartridge gets weighed after being loaded)
 
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