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Pressure tested a 7/8 Bismuth #15177464 08/29/20
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Makintrax73 Offline OP
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I had limited access to supplies, and needed a non-tox load for my 2 1/2" 16ga for sharptail on WPAs. Figured I'd post up the data in case it might be helpful. Pressure testing was done by Precision Reloading:

FIO hull - New - hand trimmed to 65mm - roll crimp with PRI roll crimp tool
FIO primer
SG 16 wad
390 grains - Bismuth No. 6 taken from Kent hulls (7/8 oz +/-)
Unique Powder
________________________


19.5 grains Unique

AVG - 1,234 fps - 5,683 psi
STD DEV - 19 fps - 532 psi
EX SPR - 46 fps - 1,370 psi
_________________________

20.5 grains Unique

AVG - 1,262 fps - 6,022 psi
STD DEV - 21 fps - 220 psi
EX SPR - 50 fps - 490 psi


Re: Pressure tested a 7/8 Bismuth [Re: Makintrax73] #15178440 08/29/20
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Chocolatepossum Online Content
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Thanks for sharing!

Re: Pressure tested a 7/8 Bismuth [Re: Makintrax73] #15440816 11/22/20
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harkom Offline
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hi Mtrax.
Thank you for the post - welcome information. By the way, was the Fiocchi primer a 615 or a 616.
Thanks.

Re: Pressure tested a 7/8 Bismuth [Re: Makintrax73] #15778752 02/12/21
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Graham_Shewell Offline
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I am sure there used to be quite a few Bismuth loads on the low pressure group but looking at the lists now there are quite a few missing. I will have to try and dig out the old lists....

Re: Pressure tested a 7/8 Bismuth [Re: Makintrax73] #15813774 02/20/21
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Bob_B257 Offline
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This is helpful for a nice easy load to go in the Model 12. My son shoots it very well even with the Very tight choke.
Thanks for posting it.


I used to only shoot shotguns and rimfires, then I made the mistake of getting a subscription to handloader.......
IC-A

Re: Pressure tested a 7/8 Bismuth [Re: harkom] #15850223 03/01/21
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Makintrax73 Offline OP
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Originally Posted by harkom
hi Mtrax.
Thank you for the post - welcome information. By the way, was the Fiocchi primer a 615 or a 616.
Thanks.


I honestly don't know. This load was developed based on Fio shells that came already primed from Precision Reloading. The tag on the bag of hulls doesn't specify.


Glad to hear a couple of you guys found some use from this data.


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