Originally Posted By: Catdog1thanks so much for the information this is what I was looking for. I have previously had a 22 - 250 Ackley improved and honestly there was a significant difference between my fireform loads and my Ackley loads. Enough that I had to re-zero the gun depending on which loads I was shooting that day, it became very irritating
To give you an idea of what I'm talking about, here is an example of what I do with the 6mm DTI. When I go prairie dog hunting, I will load a couple hundred virgin cases. I will also load 50-100 loads that are exactly the same with once-fired brass. When the shooting starts, I shoot the virgin brass loads until the dogs are burned back a ways, then I switch over to the once-fired loads for shooting out past 400 yards. The once-fired brass does seem to be more accurate, but the virgin brass had proven to be plenty accurate even for small varmint.