09-11-2018, 10:48 PM
mdewitt71 Wrote:...Hornady book says a certian load is 2350 out a 20" and I am shooting 2525 out of an 18"; just one example of not caring for educated guesses...You are looking at about 200 fps above the book value. This puts your load more in line with what one could expect from an 18" Creedmoor.
Your information is more than two or three standard deviations above the expected velocity. This means that something is almost certainly wrong with the chronograph, the rifle, the load, or other.
Can you share the load you got the incredibly excellent velocity with. Others might be able to help trouble shoot what could be a serious safety issue resulting from pressures possibly being well above the SAAMI maximum.
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"To those who have fought and almost died for it, freedom has a flavor the protected will never know."
-- Author Unknown
"If at first you do succeed, try not to look astonished!" -- Milton Berle