Joined: 17 Aug 2016
I found an old box of 3½ shells blown out at 25 a box with 2⅛ of shot, I'm looking to empty the hulls and put them in a cheddite 16 gauge hull. Recipes are nearly impossible to find. I'm looking for something around 1100-1200 fps. These are #1 shot if it makes any difference.
I do also have federal and Remington hulls if cheddite data is limited.
A few years ago I ran across a similar deal where the store was closing out their 12ga 3.5" TMs for about $20/box. A friend of mine hunts turkeys with a 3.5" 12ga but uses lead. the shells were dismantled, I took the shot and gave the rest to him. According to Kent the TM acts very similar to lead as far as loading goes. So I just use the load data that I have for lead loads. the loads that I've shot seemed very similar to lead in the same loads. The main difference is that since TM is denser than lead, it must be loaded by weight rather than volume in the bushing. So a load that is correct for 1 1/8 oz lead shot is the same as 1 1/8 oz TM (keeping in mind that it's going to be a size or two smaller bushing).
Doubtful you'll find any data for TM as it was never available in the US as a component for reloading. I believe it is (was?) available in the UK at one point.
Personally, I would not simply substitute directly with lead recipes without having the loads tested. It is a different material with different properties from lead. TM is NOT more dense than lead. It's density is reported as being 10.6-10.8 g/cc as opposed to high antimony lead at 11.1 g/cc.
I have a good bit of loaded TM that I'd like to scavenge some of the shot from. I've yet to find any verified TM loading data. Until I find good data or get the urge to test some on my own, I'll just use the factory ammo as is.
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I don't know about TM but #1 Bismuth doesn't pattern very well in any of my 16 gauges. Chokes full, modified, or light modified. TM is more like ITX10 then anything else as far as weight or hardness. Maybe 16gauge waterfowler will chime in. He's more up on notox then anyone else on here. Or perhaps Dave in Arizona, if he doesn't know he'll find out.
AS FAR AS A DIFFERENCE BETWEEN #1 & #6 SHOT, THE SAME WEIGHT OF #1 SHOT WILL TAKE UP MORE SPACE THAN #6 & THAT MIGHT BE A PROBLEM EVEN WITH A 1 OZ 16 GA LOAD. I, TOO, HAVE HAD POOR PATTERNS WITH ANYTHING LARGER THAN #4 IN 16 GA NON-TOX
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