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Rifles, Reloading, Optics, Equipment
Reloading
Quickload question for 300WSM
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<blockquote data-quote="winmag" data-source="post: 691120" data-attributes="member: 22166"><p>66 grains is Alliant's max load recommendation on thier website. So far I agree with them. 66 is as far as I felt comfortable pushing it for load testing.</p><p></p><p>I shoot 180 Accubonds over 65.0 gr of RL-17 in my Model-70 custom, Long Action 300WSM. I use Nosler brass, & it's on its 3 loading so far. Bullets seated .015 off lands with a c.o.a.l. of 3.004 your clear back at 2.262 so your capacity ratio is better than mine for a hot powder, but I had er throated long for flingin 200gr Accubonds too.</p><p></p><p>Tested all the way from 63gr to 66gr in .5 gr increments, 95* temps with no real issues, but it just seemed "too hot" of a load at 66gr. Slightly stiff bolt but barely noticeable. No flattened or cratered primers, no shiny marks on brass etc. just felt a bit too hot. So I backed off to 65 gr in .2 gr increments where I found the best accuracy.</p><p>I hunt Hells Canyon in August for bear, in temps up in the hundred & teens, so I'd rather err on the safe side..... If you consider 1 gr under max the safe side<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" />gun)</p><p>IMO 66gr really is about where max safe load was in a moderate climate. I didn't feel comfy at 66gr personally for my hunting climate. I'm good with 65 tho.</p><p></p><p>As a side note, I'm shooting over max with 140 Accubonds over RL-19 in my 270WSM in Hells Canyon with zero issues what so ever.</p><p></p><p>I really like Alliant RL powders.</p></blockquote><p></p>
[QUOTE="winmag, post: 691120, member: 22166"] 66 grains is Alliant's max load recommendation on thier website. So far I agree with them. 66 is as far as I felt comfortable pushing it for load testing. I shoot 180 Accubonds over 65.0 gr of RL-17 in my Model-70 custom, Long Action 300WSM. I use Nosler brass, & it's on its 3 loading so far. Bullets seated .015 off lands with a c.o.a.l. of 3.004 your clear back at 2.262 so your capacity ratio is better than mine for a hot powder, but I had er throated long for flingin 200gr Accubonds too. Tested all the way from 63gr to 66gr in .5 gr increments, 95* temps with no real issues, but it just seemed "too hot" of a load at 66gr. Slightly stiff bolt but barely noticeable. No flattened or cratered primers, no shiny marks on brass etc. just felt a bit too hot. So I backed off to 65 gr in .2 gr increments where I found the best accuracy. I hunt Hells Canyon in August for bear, in temps up in the hundred & teens, so I'd rather err on the safe side..... If you consider 1 gr under max the safe side:Dgun) IMO 66gr really is about where max safe load was in a moderate climate. I didn't feel comfy at 66gr personally for my hunting climate. I'm good with 65 tho. As a side note, I'm shooting over max with 140 Accubonds over RL-19 in my 270WSM in Hells Canyon with zero issues what so ever. I really like Alliant RL powders. [/QUOTE]
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