I use my old Lyman Handbook that was probably printed in the 90's or earlier. Lots of CCI primer loads in there. Listed in the Lyman manual is the Hogdon Powder Primer Variation test for the 1 1/8 oz. 12 bore load. All the other components are equal which is necessary to really compare pressure since many other factors can come into play. The CCI primer showed 8,400 psi, the Winchester at 10,900 psi and the Federal at 11,000 psi. Pretty high pressure for all. I’d like to know what the load consisted of but, other than the primers, it wasn’t mentioned. There are loads at 7,000 psi or under for all of these primers, but not in the 1 1/8 oz. load.
I’ve heard that pressure does not impact recoil but I remain unconvinced. My 12 bore, low pressure loads kick less than comparable Gun Club or AA loads. They are much more comfortable to shoot. It’s the same with every gauge even the 28. My 28 loads are much softer to shoot that any factory load. If pressure doesn’t have any impact on recoil, I’d like to know why my shells, compared to comparable factory shells, kick so much less. Maybe someone with a relevant degree can inform me. I’d like to know for sure.
I don’t load less than an ounce in the 12 bore. There isn’t any need to. I can get the pressures, recoil and performance I want with the 1 oz. load. My ounce loads are at 1180 fps.
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