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< 16ga. Ammunition & Reloading ~ Light bismuth load tested |
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Posted:
Thu Sep 22, 2016 7:43 pm
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Joined: 23 Mar 2016
Posts: 11
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Just in case someone might be interested I just got the results back from a bismuth load I had tested.
Hull---Cheddite 2 1/2" 16 ga
primer---Win 209
powder---15.5 gr Green dot
wad---SG16
shot---7/8 oz. #7 bismuth
overshot---.030 card
-roll crimped-
ave pressure=6228 psi
ave velocity=1119 fps
My Cheddite hulls actually measure almost 2 9/16", and the 7/8 oz load was good fit with this combination. Could drop the shot charge to 3/4 oz. but would think I would need a 1/8" wad in the bottom of the shot cup to raise the shot column. Or I could trim a bit of the hull. A 3/4 oz load would drop pressure a little, and raise vel. a bit.
Plan on using these in a 1920's vintage Vickers for snipe this fall, so the 7/8 oz load is a bit overkill for what I plan to do with them. Figured it was the heavier of the two loads I might roll up, so that is the one I had tested. |
_________________ “Nitro cracking in woodcock cover has something about it as respectable as a village church bell.”~Gordon Macquarrie |
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Posted:
Fri Sep 23, 2016 1:44 pm
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Member
Joined: 09 Jan 2013
Posts: 2165
Location: Florida
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Nice low pressure load for vintage guns , thanks for sharing |
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Posted:
Mon Sep 26, 2016 9:11 am
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Joined: 22 Aug 2015
Posts: 31
Location: Magnolia, TX
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Very nice FF!
One for the spread sheet!
Best,
Bill |
_________________ Bill Johnson |
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