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Old 01-13-2013, 09:34 PM   #1
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Default 300 RUM load dev

I just bought a new sendero
I zeroed out at 60 yards (4shots)with factory 165gr. Then moved out to 200 yards and fired 9 shots 200gr AB's with H1000 powder 88gr -92gr moving up by 0.5 per shot. 2820-3005fps
2989 and 3005 fps were out of group.
Pretty Darn happy for just load development stage. Next trip will be 90.5gr @2920fps @400 to see if they hold together.



image-798824480.jpg   image-1375405814.jpg  
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Old 01-13-2013, 10:32 PM   #2
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Nice brake. Is that factory?



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Old 01-14-2013, 12:04 AM   #3
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Aftermarket and love it. I think it makes the big RUM comparable to my 22-250!

http://muzzlebrakesandmore.com/site/6bd6fe111d59489f922eec68b68dd7b9/default?url=http%3A%2F%2Fmuzzlebrakesandmore.com%2 FPorted_Muzzle_Brakes.php#2987

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Old 01-14-2013, 09:56 PM   #4
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Sweet! Thanks for the link.

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Old 02-24-2013, 12:07 PM   #5
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Bam bam !!

Back to top

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Old 02-24-2013, 01:27 PM   #6
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Quote:
Originally Posted by minniehill View Post
Thanks for the post. Couldn't open from the link but was able to Google and find them. Thats the brake I have been looking for. Nice shooting iron too by the way.
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Old 02-24-2013, 04:16 PM   #7
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Nice groups.



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