20-220 Swift
Think I will shoot this next weekend, today I loaded some rounds, started with what is a full case for my 20BR which is 31.5gr of 4064, this and 32gr Nosler BT bullets make 4,250fps from the BR. Went up in .5 gr steps to 34.5gr. I still have quite a bit of room left in the case at that. Wondering if I may be able to up it some more, so if anyone has a calculator of some type I would appreciate it. The rifle has a 27 inch 1 in 12 barrel. Larry
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A gun is just like a parachute, if you really need one, nothing else will do.
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