223 question

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NewInWestsyde

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I have gone through and neck sized and deprimed me once fired brass and cleaned off all lube.

Weighed to sort brass in 1/10 grain from 94.0 to 95.1

also have large amount in the 90-91 grain range and plan on using these.

How short is too short on case length??

I am ranging between 1.745 to 1.770, with recomendations of 1.760 being the norm as far as i can figure, and 1.748 being one number that popped up the most.

Went and took random samples of heaver brass and they showed short also.

New at this and would love your advice.

Thank you
 
Is it your once fired brass or did you get it that way? IE it had been fired with a different rifle.
 
Sorry for the confussinn
My once fired brass
Half from winchesster 64 grain shot so so
half american eagle 55 grain (13 buck for 20 and shoot awsome and neck doesn't have pronounced crimp)
anything else to help confusion?
 
Trim them to to 1.75. The ones that are shorter will grow in the next firing or two....or....If you have an adjustable trimmer then you could make them all 1.745 to keep them uniform if you wanted. If you are using the Lee cutter and lockstud your case length will be 1.75.
 
Trim

You can trim all your brass to 1.75" and anything that is shorter can be put aside for sighters or test rounds. You'll have to re-weigh all your brass once you trim them. If you really want to shave some more weight from the brass you can deburr the flash holes. Just more prep time!
 
Your possibly questioning the wrong thing. If the shoulders are in the right spot, and the neck is long enough to properly hold onto a bullet, there is no problem. I always use Lee case trimmers, and I trim all cases after every sizing to maintain consistent bullet grip/ let off (don't know if it helps, but it can't hurt). The trimmer that I've always used for 223 trims to 1.755; the actual trim length is supposed to be 1.750. The thing that I would be concerned about if I where you is separating the cases by brand and lot; especially if you plan on loading for accuracy, or loading close to max, as different brands and lots can have very significant pressure differences, especially in a case as small as the 223.
Mike
 
Max is 1.760" Trim to is typically 1.750" as stated.

Sorting brass by brand is probably a good idea, but sorting it again further by weight is a fools errand.
 
B said:
Not if you are shooting for maximum accuracy.
Click to expand...

it is useless to sort by weight. if you want to do it properly sort by volume. all the same volume=all the same pressure=better accuracy.

the short brass is pretty typical of factory ammo. just use it. short brass is better than long brass.

or just sell the once fired brass and go buy new brass
 
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