Having a can of Alliant Black MZ powder I decided to give it another try today in the CVA Accura V2.
I had tried it previously in my sidelocks and although there was not problem igniting it, the accuracy was off. After doing a bit of research on the powder I thought the reason was because I was using a moderate charge (80 gr) as opposed to the recommended 100 - 120 gr charge for 300 gr bullets.
Well I loaded up a bunch of tubes with 110 gr and was going to test 300 gr XTPs, Sierras, and Barnes MZ along with 295 gr Powerbelts.
All shots were to be fired at 100 yds. Well, I fired 3 XTPs and went to check the target. Two were about 1" apart just right of the bull and another about 8" low. So I went back and fired another thinking the low one was either the first shot or something else wrong. Without walking up to the target I proceeded to fire 3 of the Sierras. Again going up to the target - well, let's just say I am glad I had the target dots placed on a 14" x 16" piece of cardboard because these bullets were all over the place. I decided right there that there was no need to even waste my time with the Barnes and Powerbelts.
The grouping was so horrible that I am wondering if my Leupold Ultraslam went bad on me. I didn't have any BH209 with me to run a couple rounds downrange to verify. But I won't be confident until I get to shoot the rifle with BH209 again.
I will be sure to let you guys know if it is the scope.