How many spent cases in a pound.

[tackstrp]

I ran across this url some time ago. Has a lot of information about how many case in a pound, and other means of measurment. Just passing it on.

http://thefiringline.com/forums/showthread.php?t=320051

the following is from that url.
To count them get a scale and use the info below

9mm, 59.46gr/ea, 117.7cases/#, 8.5#/1000
38spl, 68.06gr/ea, 102.8cases/#, 9.7#/1000
40s&w, 70.1gr/ea, 99.9cases/#, 10#/1000
.357mag, 78.3gr/ea, 89.4cases/#, 11.2#/1000
.45acp, 89.58gr/ea, 78.1cases/#, 12.8#/1000
.223, 95.28gr/ea , 73.5cases/#, 13.6#/1000
.44mag, 114.38gr/ea, 61.2cases/#, 16.3#/1000
50bmg, 865.26gr/ea, 8.1cases/#, 123.5#/1000

All weights are uncleaned fired cases with the primer remaining.

Individual case weights were derived using an average of mixed brass weights (except 50bmg)

So, if you picked up 8#?s of 45 brass: 8# X 78.1cases/# = 625 cases+/-

If you use 1gal ziploc freezer bags to store your brass, each (full) bag contains:

9mm, 15.6#, 1836cases
40s&w, 12.2#, 1219cases
45acp, 11.4#, 890cases
223, 11#, 809cases

or if you use the 5gal bucket method

9MM = 8500-9000 pieces
.40 S&W = 7000-7500 pieces
.45 ACP = 3800-4000 pieces

here is a few more


CASES per POUND:

.380: 145
.357 Sig: 96
.45 GAP: 86
.32: 168
10mm: 96
FN 5.7: 124
.25 acp: 260
.30 Luger: 120
.38 S&W: 120
.38 Super: 104
9mm MAK: 124
.45 Colt: 60
.30-M1: 100
.308: 40
.30-06: 35
7.62x39: 54
.50 AE: 48
.30-30: 52

[JonB_in_Glencoe]

9mm, 59.46gr/ea, 117.7cases/#, 8.5#/1000


that some very interesting info.
But, I fear there is a flaw.

I swage 40 cal bullets using 9mm Lugar cases.
I pre-weight them and match them to cores for the optimal uniformity.

9mm Luger cases may weight as little as 54 gr. to as much as 70 gr.

I suspect there may be as much variance in other calibers.
Jon

[tackstrp]

yes i have noticed that myself. . reason posted the url . seems to be many different versions on counting. but regardless is a guideline.

[bumpo628]

The data above can be used as an average since I'm sure whoever weighed them didn't sort them by headstamp.

[fecmech]

Those numbers for .38 spl, 9MM,.45 acp are all within numbers I derived for myself years ago and I'll add one to the list. Military .38 spl cases 92/lb.