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Long Range Hunting & Shooting
300 Norma Improved. Load testing, info, and builds
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<blockquote data-quote="rpierce" data-source="post: 1977733" data-attributes="member: 20643"><p>Well I tried some H50bmg powder and 230 bergers in my heavy test rifle. Did a ladder test and found two different nodes that were a grain wide and held under 2" vertical at 580 for that spread. Very wide powder nodes and stupid accurate. Heres the two groups from the upper node I shot at 580 yds tonight in a 10mph wind with 98.2 gr of h50bmg. The one group had .394"/.064moa vertical. The second group had .523"/.086moa vertical. The 6 shots at 580 had a ES of 10 fps and average velocity of 3045 fps in the 30" test barrel. With my elk hunt coming up I decided to throw that load in my carbon barrel to try out. Sent 3 rounds into .100"@100 and had a ES of 3 fps and SD of 1.6 fps Gonna do a small ladder test to make sure im in the middle of the node and then see how wide my seating depth window is. But Im definitely in the general vicinity of where it wants to be shot LOL. Ill stretch it out in a day or two. As a side note you will have to use a drop tube if your going to use Reloader 50 or H50bmg. Theres definite powder crunch with both. I had loaded some rounds up and let them set for a few days to see if the powder would push the bullet back out a hair. Didn't even move a half thou so Im good to go there.</p><p></p><p>[ATTACH=full]213467[/ATTACH][ATTACH=full]213468[/ATTACH][ATTACH=full]213469[/ATTACH][ATTACH=full]213470[/ATTACH][ATTACH=full]213471[/ATTACH][ATTACH=full]213472[/ATTACH]</p></blockquote><p></p>
[QUOTE="rpierce, post: 1977733, member: 20643"] Well I tried some H50bmg powder and 230 bergers in my heavy test rifle. Did a ladder test and found two different nodes that were a grain wide and held under 2" vertical at 580 for that spread. Very wide powder nodes and stupid accurate. Heres the two groups from the upper node I shot at 580 yds tonight in a 10mph wind with 98.2 gr of h50bmg. The one group had .394"/.064moa vertical. The second group had .523"/.086moa vertical. The 6 shots at 580 had a ES of 10 fps and average velocity of 3045 fps in the 30" test barrel. With my elk hunt coming up I decided to throw that load in my carbon barrel to try out. Sent 3 rounds into .100"@100 and had a ES of 3 fps and SD of 1.6 fps Gonna do a small ladder test to make sure im in the middle of the node and then see how wide my seating depth window is. But Im definitely in the general vicinity of where it wants to be shot LOL. Ill stretch it out in a day or two. As a side note you will have to use a drop tube if your going to use Reloader 50 or H50bmg. Theres definite powder crunch with both. I had loaded some rounds up and let them set for a few days to see if the powder would push the bullet back out a hair. Didn't even move a half thou so Im good to go there. [ATTACH type="full" alt="pic 4.jpg"]213467[/ATTACH][ATTACH type="full" alt="pic 3.jpg"]213468[/ATTACH][ATTACH type="full" alt="pic 2.jpg"]213469[/ATTACH][ATTACH type="full" alt="pic 1.jpg"]213470[/ATTACH][ATTACH type="full" alt="pic 5.jpg"]213471[/ATTACH][ATTACH type="full" alt="pic 6.jpg"]213472[/ATTACH] [/QUOTE]
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300 Norma Improved. Load testing, info, and builds
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