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what is effect of short brass

Posted: Wed Oct 10, 2012 4:06 pm
by Promapper
Just wondering, what effect if any does brass that is up to a tenth short of the published size have on accuracy?

thanks

Re: what is effect of short brass

Posted: Wed Oct 10, 2012 7:18 pm
by Bill K
If you mean tenth of a inch in the length of the neck or overall length, then I do not think most of the time it really hurts anything, as in time, it will most likely stretch after a few reloads. Bill K

Re: what is effect of short brass

Posted: Thu Oct 11, 2012 12:14 pm
by Sth Oz Dan
One tenth short = 1.75" on a .204
That's only half a neck. I imagine you'd have runout issues considering there'd be very little contact with the bullet.

Ten thou? that's a bit different - 1.84" - where most trim to anyway

Re: what is effect of short brass

Posted: Thu Oct 11, 2012 12:33 pm
by Rick in Oregon
BIG difference between .1" (a tenth), .01" (a hundred) to .001" (a 'thou').

I would not want ANY brass for ANY of my rifles that was a full tenth (.1") short. Can you say "gas cutting" and "ruined chamber"? I'm betting you really meant .010" short, right? (a hundredth)

Re: what is effect of short brass

Posted: Fri Oct 12, 2012 5:44 am
by Promapper
good catch and yes you are right 1/100. sorry bout that

Re: what is effect of a short round

Posted: Mon Nov 05, 2012 2:05 pm
by jam1e
Apologies for butting in on your thread "Promapper"
But on the same kind of note, i've noticed that the "Modern Reloading" by Richard Lee (My understanding anyhow) states that the optimum oal of the .204 Ruger round is 2.260. Yet when i bought 3 different lots of rounds they were all short.
Hornady 40gn v-max 2.241
Hornady 24gn ntx 2.237
Remington 32gn accu-tip 2.236
So if, when making my reloads i kept the oal to as close to 2.260 as possible, would they be more accurate?
Or should i go for the overall average of the three at 2.238?
Cheers
Jamie