Recent content by John Christoffel

I hand load using a Lyman Gen 2 powder scale that is accurate to .1 grain. I use Lapua brass from the same manufacturing lot and all weighs within 1 grain (I sampled one in ten cases out of 400 cases). I check and adjust bullet concentricity to within .001" using a Hornady gauge. The gun has...

To Berkman: Cross winds were not a factor on the night we observed this. Our range has wind flags and they were barely moving. Also, I observed two other shooters the same night with straight paths (and better scores). I do not understand the tractability comment from Bystander. Are you...

I have a physics degree, I'm now retired and have taken up long range shooting as a hobby. When shooting at 600 yards, my spotters have noticed the contrail of my bullet follows a helical trajectory near the target. I shoot a 243 (6mm), 105 grain target bullet made by Berger at a muzzle...