Just finished checking over my 9x21 Witness (iron sights, factory barrel and two-port comp, EAA Supersight, round trigger, DA/SA) I actually scrubbed my bore bright.
Then I had to reset the sight and chrono my competition ammo.
Mixed many-fired cases, three different load dates, two (LOL) different OAL's.
Shot 20 rds to tune up the bore then chrono'ed. I put a target behind the screens at about 25ft) so I don't buy parts. I settle in the gun (and shooter) with one shot dead center through the screens into the target as my aiming point (read A. Swenson did this).
First 'serious' shot didn't appear in the target! Shot again. No hole.
Concentrated real hard; great sight picture, ideal trigger control, bang!
Saw a slightly larger right side of the 'chase' hole.
So now I gotta stop and go look and yep there's three holes into that chase hole.
Made more holes finished chrono'ing recorded data and perused..............
Extreme spread 50fps, 1280-1330fps.
One hole.
Actual testing continues to be required; assume nothing.
Then I had to reset the sight and chrono my competition ammo.
Mixed many-fired cases, three different load dates, two (LOL) different OAL's.
Shot 20 rds to tune up the bore then chrono'ed. I put a target behind the screens at about 25ft) so I don't buy parts. I settle in the gun (and shooter) with one shot dead center through the screens into the target as my aiming point (read A. Swenson did this).
First 'serious' shot didn't appear in the target! Shot again. No hole.
Concentrated real hard; great sight picture, ideal trigger control, bang!
Saw a slightly larger right side of the 'chase' hole.
So now I gotta stop and go look and yep there's three holes into that chase hole.
Made more holes finished chrono'ing recorded data and perused..............
Extreme spread 50fps, 1280-1330fps.
One hole.
Actual testing continues to be required; assume nothing.