I bought a case of the lower pressure Boss copper plated bismuth recently, no. 5s. These lower pressure loads are loaded with fiber wads instead of plastic shot cups. I am in the process of pattern testing them in several of my duck guns. So far I have patterned them in a SuperFox and a L C Smith 3E. I intend to make my findings public, in some way or another, after I finish. I am also doing penetration testing as I pattern test.
I can say now that the patterns are extremely consistent, and would be deadly at the 40 yard distance at which I am testing, and even further. i fully expect that the plastic shot cup loaded loads (at higher pressures) would pattern a good deal tighter, and the helpful lady at Boss confirmed to me that they will.
I'm impressed with them so far, though I haven't had the opportunity to use them on ducks. At $1.23 per shell delivered, they may turn out to be a heckuva deal for those of us who want lower pressure duck loads for our vintage guns.
SRH
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