223 ar15 brass ????

[xfoxofshogo]

ok so i been shooting my ar15 223 i have ran this brass for 5 reloading and its not geting longer how often do you have to trim 223 brass?
i know.
the 308 i was all ways triming it to fit

[medalguy]

What's your load and start trim-to length? A light load won't cause the brass to grow very much at all.

[JIMinPHX]

I can shoot 2,000fps loads in a .223 all day long & never need to trim. Hotter loads are another story.

[MtGun44]

I have personally observed 3 different .223 rifles blown to bits, literally. Each one was caused
by people not trimming the cases, and the loads were medium loads, nothing particularly
hot, but the cases were well over the max allowable length.

PLEASE check the length of your brass and trim if necessary. This is NO MINOR DEAL,
this can easily blow the gun to shreds, really.

To directly answer your question, it totally depends on the headspace in the chamber and
the setup of the dies when resizing. If you do not push the shoulder back when resizing,
very little case growth will occur after the first firing. If you fully return the brass back to
the situation where the die touches the shellholder each time, it will probably be relatively
few times. If you have run 5 times and not checked the length you could be treading on
very thin ice. If you have measured and everything is good after 5 times, you have tight
headspace and are not oversizing the brass.

Bill

[xfoxofshogo]

well it is a ar15 chamber in the nato and 223 .

but i do mic them and thay just seem to not need triming and i do check them.

my load is h 335 24.0 gr 55gr game king serra and i do not crimp them the crimper .

i have mess up the case and thay fit sung i do not need to crimp

[Lizard333]

I check the overall length of my brass EVERY time. You can buy a case gauge from Dillon and check the length after you tumble and re-size your brass. Just takes a minute. I put the ones that are within speck in one pile and the long I put into a pile to trim and debure. Just part of processing brass. Plus, the more you handle your brass, the more opportunity you have to find cracked cases and other deformations and signs of wear.

[pbbutz]

A case gauge is never a bad idea. Get use to using all the time and you will wonder how you did without it.

http://www.midwayusa.com/viewproduct/?productnumber=456614&cm_mmc=Froogle-_-Reloading%20-%20Metallic%20Reloading%20Equipment%20(Not%20Press es)-_-PriceCompListing-_-456614

[Moonie]

For cast I load 18gr of H4895 and for J-words I load 22gr of H4895 for plinking and competition (short range) and I never have to trim.