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New 6.5 Idea

 
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  #106  
Old 02-18-2013, 09:24 PM
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Re: New 6.5 Idea

Talked to 270 win short today he told me about this thread, darn now i want a new gun. This has been a joy to follow. Those groups with different loads are amazing. I have one of the three 270 amps rhb was talking about what a fun gun to shoot. This new 6.5 sounds even funner . I know rhb puts quality in all he does. Great thread guys
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  #107  
Old 02-18-2013, 10:10 PM
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Re: New 6.5 Idea

Good to see you back GG! You will add a lot to the forums.
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  #108  
Old 02-18-2013, 10:37 PM
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Re: New 6.5 Idea

Not to hijack the thread, but what's a 270 amp?
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  #109  
Old 02-19-2013, 12:09 AM
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Re: New 6.5 Idea

Quote:
Quote:
Originally Posted by elkaholic View Post
Mark....AZShooter (this forum) loaded up to 102 grains in a 300 ultra with a 230 Hybrid. I don't think you can come close to that with Retumbo......Rich
I looked up the post. You're right. RL 33 would be wayyyy too slow for this cartridge. It looks like and uber over bore powder too me.
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  #110  
Old 02-19-2013, 12:23 AM
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Re: New 6.5 Idea

Wow, I must say that round turned out great with some real potential!

So this question is open to anyone with some experience to which powder might work best for pure accuracy without too much trial and error in a 6.5/300 WSM, since barrel life could be limited.

My current load is 65.0 grains of Retumbo behind a Sierra 140 gr. GK @ 2.400" ogive length. It shoots 3/8" groups @ 100 yards, but only at 2990 fps average 20' from the muzzle w/ a 24.5" barrel. I was hoping this would keep it shooting great for a longer period of time?

I tired IMR 7828, 7828 SSC and H4831 during barrel break in with little luck. I'd like more speed but I don't want to give up anything in the accuracy department. I have a box of 140 gr. Matchkings I'm thinking of toying with, but I hate thinking of all the load development it might take to produce another better round.

I have enough magazine room that the 140 gr. Matchking's will seat with the Boat tail taper right at the neck/shoulder juncture in the case. So my hope is that it should shoot well if I can find the right powder. So any suggestions would be greatly appreciated.

Thanks
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  #111  
Old 02-19-2013, 04:40 PM
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Re: New 6.5 Idea

Liltank, the 270 AMP is a cartridge I designed on the 7mm Dakota case. It has a 40* shoulder and reduced taper and necked to .270. It shoots the 170gr bullets at 3050 -- 3075 fps and has proven to be very accurate!! ---- 7mmRHB
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  #112  
Old 02-19-2013, 04:49 PM
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Re: New 6.5 Idea

270 lefty. thanks for the endorsement . I remember yours being the one with the bolt on the wrong side!!--- RHB
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