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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
220g SMK load for 300 RUM?
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<blockquote data-quote="Digger49r" data-source="post: 33204" data-attributes="member: 825"><p>I've been shooting the 300 RUM in a Rem Sendero for a couple of years now. My bullet of choice is the 220 SMK at this point although I want to give the 200 Accubond a go this year. I've also got some 230 gr Wildcat Bullets to try also. I've got my best (Sub-MOA) groups with Retumbo and H-1000. but the rounds are genrally too long for the Mag in any case. I seat .005 to .010 off the lands which gives me an OAL of 3.751 with the 220 SMK (.005) which is way too long for the Mag. My best Accuracy loads are:</p><p></p><p>Retumbo: 90.5 gr, Fed 215, 5 shot group avg vel of 2955 fps with 1/2 MOA accuracy</p><p></p><p>H-1000: 91.5 gr, Fed 210M, 5 shot group avg vel of 3066 with .8 MOA accuracy</p><p></p><p>THESE LOADS ARE MAX IN MY RIFLE AND SHOULD BE BACKED OFF 10% TO START.</p><p></p><p>I should note that the H-1000 is the 'old' stuff. I found that pressures increase when using the newer 'EXTREME' version for some reason. I also had better consistency using the Fed 210M primer then with the 215 with the H-1000 but didn't find a lot of difference with the Retumbo.I've also found that is you push the 220 SMK much faster then 3000 fps accuracy tends to drop off. Hope this helps!</p></blockquote><p></p>
[QUOTE="Digger49r, post: 33204, member: 825"] I've been shooting the 300 RUM in a Rem Sendero for a couple of years now. My bullet of choice is the 220 SMK at this point although I want to give the 200 Accubond a go this year. I've also got some 230 gr Wildcat Bullets to try also. I've got my best (Sub-MOA) groups with Retumbo and H-1000. but the rounds are genrally too long for the Mag in any case. I seat .005 to .010 off the lands which gives me an OAL of 3.751 with the 220 SMK (.005) which is way too long for the Mag. My best Accuracy loads are: Retumbo: 90.5 gr, Fed 215, 5 shot group avg vel of 2955 fps with 1/2 MOA accuracy H-1000: 91.5 gr, Fed 210M, 5 shot group avg vel of 3066 with .8 MOA accuracy THESE LOADS ARE MAX IN MY RIFLE AND SHOULD BE BACKED OFF 10% TO START. I should note that the H-1000 is the 'old' stuff. I found that pressures increase when using the newer 'EXTREME' version for some reason. I also had better consistency using the Fed 210M primer then with the 215 with the H-1000 but didn't find a lot of difference with the Retumbo.I've also found that is you push the 220 SMK much faster then 3000 fps accuracy tends to drop off. Hope this helps! [/QUOTE]
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Rifles, Bullets, Barrels & Ballistics
220g SMK load for 300 RUM?
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