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who has a 300wsm 180 grain accubond load.

 
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  #15  
Old 03-30-2007, 01:52 AM
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Location: Spokane, WA
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Re: who has a 300wsm 180 grain accubond load.

Peashooter, Looked at your Nosler reference. Not many powders listed. Saw something interesting in their data. My experience with a 300 WSM and a chronograph shows that the 300 WSM case likes hot loads and gets better accuracy & ES when pushed. Nosler is the first data that shows reduced loads doing better than max type loads. VERY INTERESTING! [img]/ubbthreads/images/graemlins/shocked.gif[/img]
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  #16  
Old 03-31-2007, 08:48 AM
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Re: who has a 300wsm 180 grain accubond load.

Wapiti, about the hot loads.

I had been using the Nosler book's most accurate load for 180 gr NBT and RL22 in my 300wsm, 67.0gr, to shoot about 0.75" at 100yd. I had gone to the book max, 69.0gr, and things just got worse. Yesterday I tried going up again, starting at 68.5 and bumping by 0.3 gr. 86.5 was 1.5", 68.8 - 2.0", 69.1 back to 1.5", 69.4 - 0.5", and 69.7 - 0.6", all 5 shot groups. No pressure signs at the higher loads on a 50 degree day. It was pretty breezy so might do better in the calm. The public range was busy and I couldn't set up my chrony, so no velocity figures. At least in my gun, faster does seem to be better.

As always, YMMV, work up to max.
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  #17  
Old 03-31-2007, 08:53 AM
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Re: who has a 300wsm 180 grain accubond load.

Each rifle likes a different recipe, that's just the way it is. I had really good luck w/ 110 g vmax (.5" -.65" 5 shot groups at 100), but when I tried 165 gr, the groups were .8" to 2". My next trick is to change seating depth and see if my rifle likes them farther off the lands. I already tested the 165's for magazine length and longer, and they really did worse as the bullets got longer. Now I will test from magazine length and shorter.
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  #18  
Old 04-06-2007, 08:56 AM
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300 WSM

68.0 of Reloader 22 with 180gr AB.......w/Fed 215GM primer in FC Cases
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