Federal 7/8 loads?

[Autumn Daze]

Jerry, How can a load with 24.5 grains of SR 7625 equal 3700 psi?

[OH Osthaus]

Originally Posted by Dave Suponski

Jerry, How can a load with 24.5 grains of SR 7625 equal 3700 psi?

I agree - sounds incredible Dave

but the current load chart says the same thing - page 11

http://www.imrpowder.com/pdf/IMR_shotshell.pdf

[J. A. EARLY]

Originally Posted by Dave Suponski

Jerry, How can a load with 24.5 grains of SR 7625 equal 3700 psi?

Dave,

It is just the properties and burn rate of SR 7625 I guess with so little shot. Dan Morgan who works on Damascus barrels told me about the load when I had some bad dents removed from a Damascus tube and I was down to .022 thickness at that spot. If you get the IMR load data book there are over a dozen loads with 24 grams of shot from 3000 psi up to the highest of 5400 psi for a humming along 1250 fps.

When I shoot 12 gauge AA hulls in my 10 gauges using Gauge Mates, regular loads ruin the hulls where the cases split in the little gap of the Gauge Mates. When I use the 24 gram 3500 psi loads, the hulls do not split in the Gauge Mates. Thus I can tell they are very low pressure. I can't copy the book at home but I am sure someone else has the IMR book. Do you have one by chance? Look at the Winchester AA loads.

[Autumn Daze]

Thank You Gents, I load alot of 7625 in my 16 gauge and light 12 gauge loads. I will get out my IMR loading manual and check it out. Maybe I will load a few just for the heck of it.