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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 Sherman Shortmag (SS)
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<blockquote data-quote="Idaho Trecker" data-source="post: 1227841" data-attributes="member: 67706"><p>Ran one load of 63 grains of N560 and got 2795 which was 52 fps slower and way less pressure than before with the big speed drop. 1 load of Rl 17 was ran with 59 grains and gave me 2907 which was a lot of pressure and 11 fps faster than before the throating. </p><p></p><p>Tried one load with 65 grains of N560 which showed 2916 and was what I will call max useable. Did one more with 63.6 grains of Superformance and got 2957 which was basically no different than the 63.3 grain load I had been shooting. </p><p></p><p>Also finished out my Hybrid 100V pressure test with </p><p>59 2860</p><p>60 2918</p><p>61 2960</p><p>62 3000</p><p></p><p>The 62 grain load was the absolute max with this rifle. I'm going to try and keep the 100V load as my go to since it has been the best for temp stability for what works in here so far. Next I will see how it groups and run really close to the 60 grain and 2920 fps area. That seems to be where every powder likes to run without excessive pressure.</p></blockquote><p></p>
[QUOTE="Idaho Trecker, post: 1227841, member: 67706"] Ran one load of 63 grains of N560 and got 2795 which was 52 fps slower and way less pressure than before with the big speed drop. 1 load of Rl 17 was ran with 59 grains and gave me 2907 which was a lot of pressure and 11 fps faster than before the throating. Tried one load with 65 grains of N560 which showed 2916 and was what I will call max useable. Did one more with 63.6 grains of Superformance and got 2957 which was basically no different than the 63.3 grain load I had been shooting. Also finished out my Hybrid 100V pressure test with 59 2860 60 2918 61 2960 62 3000 The 62 grain load was the absolute max with this rifle. I'm going to try and keep the 100V load as my go to since it has been the best for temp stability for what works in here so far. Next I will see how it groups and run really close to the 60 grain and 2920 fps area. That seems to be where every powder likes to run without excessive pressure. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 Sherman Shortmag (SS)
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