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Rifles, Reloading, Optics, Equipment
Reloading
Powder question for 7mm Rem Mag
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<blockquote data-quote="str8shoot" data-source="post: 479715" data-attributes="member: 26034"><p>I've tried h4831, rl22, retumbo, imr7828, and h-1000 in 7mag with 160 accubonds. I shot a few 140s with rl22 and retumbo. </p><p>Rl22 was accurate with both bullets but shot different velocities at different temperatures. I won't buy any more RL powders. </p><p>Retumbo got the 160 to over 3000 fps but not great accuracy.</p><p>H4831 worked well but I had to load it way over hodgdons max load to get any decent velocity.</p><p>I like h1000 with 168 bergers. It will get the bergers around 3050 in my 24" barrel, but I load it at 2900 for best accuracy. With retumbo and h1000 I can stay close to book max and get decent velocity. </p><p>My 7mag will have a new barrel on it in a few weeks so I'll have to start my load development again. I will start with h-1000 first, then retumbo if I need to. </p><p>My 7mag loads really began to shine when I switched from a Federal mag primer to a winchester large rifle primer. I lost a little velocity but my group size and ES/SD shrank. I can get the velocity back with a little more powder.</p><p>Good luck to you and I hope this helps.</p></blockquote><p></p>
[QUOTE="str8shoot, post: 479715, member: 26034"] I've tried h4831, rl22, retumbo, imr7828, and h-1000 in 7mag with 160 accubonds. I shot a few 140s with rl22 and retumbo. Rl22 was accurate with both bullets but shot different velocities at different temperatures. I won't buy any more RL powders. Retumbo got the 160 to over 3000 fps but not great accuracy. H4831 worked well but I had to load it way over hodgdons max load to get any decent velocity. I like h1000 with 168 bergers. It will get the bergers around 3050 in my 24" barrel, but I load it at 2900 for best accuracy. With retumbo and h1000 I can stay close to book max and get decent velocity. My 7mag will have a new barrel on it in a few weeks so I'll have to start my load development again. I will start with h-1000 first, then retumbo if I need to. My 7mag loads really began to shine when I switched from a Federal mag primer to a winchester large rifle primer. I lost a little velocity but my group size and ES/SD shrank. I can get the velocity back with a little more powder. Good luck to you and I hope this helps. [/QUOTE]
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Powder question for 7mm Rem Mag
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