06-22-2024, 07:26 PM
So today, after the match, (I was second, my own fault entirely), I stayed to try out my new Garmin Xero C1, and double check the velocities I had previously recorded for the 109 grain LRHTs over 28.5 grains of LVR. They checked out within 5 fps average of what my old shooting crony had told me at 2609fps average velocity, SD 12.5, out of my 22" barrel.
I had gotten a couple boxes of the 105 grainers as well and I loaded up 50 of them in new starline brass to do a barrel tuner ladder for the Little Tuna on my little bastard that I have just not had time to mess around with. I loaded them at the same 28.5 grains of LVR not being overly concerned with the exact load for the tuner ladder, and needing to get some more brass fire formed to my chamber. I didn't have time today to do the tuner ladder, but I figured while I was there I might as well crony 5 of those to get an idea of the velocity. I was sighted in at 440 yds with the 109s, so for the crony I just held on the 400 yard steel silhouette and put two slow shoots into the center watching for the impacts, which I couldn't see as the center was pretty shot up. So for fun I held on the head and put three fast shots there which I could see as the paint on the "head" was undisturbed. And they were close. Serendipity! Av vel was 2615.7 and the SD was 4.7. I drove down to the 400 yard line on my way out and the two body shots were within 3/4" and the three fast head shots were around 2". Looks like I may have stumbled onto a good load purely by luck!
I had gotten a couple boxes of the 105 grainers as well and I loaded up 50 of them in new starline brass to do a barrel tuner ladder for the Little Tuna on my little bastard that I have just not had time to mess around with. I loaded them at the same 28.5 grains of LVR not being overly concerned with the exact load for the tuner ladder, and needing to get some more brass fire formed to my chamber. I didn't have time today to do the tuner ladder, but I figured while I was there I might as well crony 5 of those to get an idea of the velocity. I was sighted in at 440 yds with the 109s, so for the crony I just held on the 400 yard steel silhouette and put two slow shoots into the center watching for the impacts, which I couldn't see as the center was pretty shot up. So for fun I held on the head and put three fast shots there which I could see as the paint on the "head" was undisturbed. And they were close. Serendipity! Av vel was 2615.7 and the SD was 4.7. I drove down to the 400 yard line on my way out and the two body shots were within 3/4" and the three fast head shots were around 2". Looks like I may have stumbled onto a good load purely by luck!