Brass Weight, How many Per Pound?

This is NOT my work, but I found it here and on another forum when I searched them:

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)

I measured a .380 case at 53 gr., lee scale.
132.07 per lb.?

Unless someone else comes up with a better measurement.

I can validate Cliff's 45 ACP coffee can number. That is real close to what I came up with...

300 Blackout, converted LC cases with spent primer

300 BLK, 87.5gr/ea, 80 cases/#, 12.5#/1000 cases