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Rifles, Reloading, Optics, Equipment
Reloading
SUPERFORMANCE POWDER is SUPER in 260 REM.
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<blockquote data-quote="BrentM" data-source="post: 794160" data-attributes="member: 61747"><p>Well the verdict is still in the hands of the jury and they are fighting. </p><p> </p><p>I thought I was good to go with 51-52 grains and started at 52. I was getting pressure signs, cratering, not too flat, but I was getting the round mark on the base of the brass showing brass flow. I had to back off clear down to 48 grains to stop the brass flow and still had a little cratering. The speed is dang near identical to the Retumbo. At 200 yards the 56.5 Retumbo and 48 super had impacts on the same vertical plane. Both loads were producing .5 to 1 moa groups, the wind was being a pain. So, the good news is the speed is there, right around 2970 fps, accuracy was ok as well. </p><p> </p><p>I did push the bullets in deeper to .105 and the retumbo shot a .25 MOA 3 shot group at 200. I got very lucky and the wind died, I put 3 shots on target as quick as I could. I went back to the super at .105 and it was around .65 moa. </p><p> </p><p>Need to fine tune the super I think. However, I don't understand the pressure signs. What was good a few days is no longer good. I will say this, at 52 grains those bullets were screaming. 4" high at 200. Yikes. I would guess 3150-3200.</p></blockquote><p></p>
[QUOTE="BrentM, post: 794160, member: 61747"] Well the verdict is still in the hands of the jury and they are fighting. I thought I was good to go with 51-52 grains and started at 52. I was getting pressure signs, cratering, not too flat, but I was getting the round mark on the base of the brass showing brass flow. I had to back off clear down to 48 grains to stop the brass flow and still had a little cratering. The speed is dang near identical to the Retumbo. At 200 yards the 56.5 Retumbo and 48 super had impacts on the same vertical plane. Both loads were producing .5 to 1 moa groups, the wind was being a pain. So, the good news is the speed is there, right around 2970 fps, accuracy was ok as well. I did push the bullets in deeper to .105 and the retumbo shot a .25 MOA 3 shot group at 200. I got very lucky and the wind died, I put 3 shots on target as quick as I could. I went back to the super at .105 and it was around .65 moa. Need to fine tune the super I think. However, I don't understand the pressure signs. What was good a few days is no longer good. I will say this, at 52 grains those bullets were screaming. 4" high at 200. Yikes. I would guess 3150-3200. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
SUPERFORMANCE POWDER is SUPER in 260 REM.
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