long shot from my data shows a very low pressure curve and good vel. 8 grains of long shot powder should yield 1150 Vel. with pressure at 32,300 with the 180 grain bullet. 7.5 with the 165's should also be at about 1150. with a little less pressure.
my O.A.L. is 1.127. they feed and shoot well. I was told to stay under the max pressure of 35,000, and I do.
the primers are a little flat, but i expect that and there is no bulge in the case. so i guess i answered my own ?? there.
with a shell in the barrel it is captured all around except for a little spot on the feed ramp. but it does not go past the webbing of the case. so i guess that means it is not fully supported. to be fully supported it would have to have a separate feed ramp. i think.
i understand that other things effect pressure, such as O.A.L( seating to deep ) but i don't know what Else would.
maybe to tight a crimp?
thank you for your help