View Single Post
Old February 22, 2013, 06:36 PM   #2
Senior Member
Join Date: December 28, 2006
Posts: 3,766
My guess at the cause of this situation is that the Nosler ballistician's chronograph might have been reading the shock waves from the fireballs produced with the slow powders rather than the passages of the bullets.

My guess would be that the techs at Nosler know more about reading a chrono than to make an obvious error like that. I think test barrels and the difference in the resulting pressures created by them would be more plausible. I shoot a lot of Nosler 158 grainers over H110/W296 and have chronoed them myself. The results shown in your Quickload example is close to what I get from my 5 and 6 inch revolvers. What Nosler shows is a tad less than what I get from my 20'' carbine with similar charges.
buck460XVR is offline  
Page generated in 0.03026 seconds with 8 queries