Forming Cases and other things

[Distant Thunder]

I weighed the various ".44-77" brass with these results;

BACO .50-110 - 229.9 grains

.300 Win Mag - 224.7 grains

Bertram 45 base - 185.7 grains

Starline .45-2.6 203.4 grains

JBA .44-77 - 226.9 grains

I also measured the inside diameter of the necks on these fire formed cases.

BACO .50-110 - .444"

.300 Mag - .438 to .440" (somewhat depends on the brand of brass used)

JBA .44-77 - .448 to .449"

Bertram 45 Base - .444 to .446"

All except the JBA were fire formed with bore diameter paper patch bullets so the thicker necks were not a problem. Clearly some of the conversions would have to be neck reamed to be used with groove diameter bullets (.447-.448).