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30 cal 215 gr. HYB

 
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  #1  
Old 05-06-2012, 09:45 PM
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Join Date: Oct 2011
Location: Tucson AZ
Posts: 54
30 cal 215 gr. HYB

Finally had an opportunity to shoot some 215 hyb.
factory 700 Sendero SF1 300 RUM, Nosler cases, Retumbo and Fed 215 mag primers. OAL 3.885 .005 off the lands
Started with 88 gr and ended with 92.5 in .5 gr increments. Three shot groups until I narrow down a load. best group so far was 89 measuring .310. From there the groups opened slowly to 1.22 (only two groups) and then at 91 to 92.5 started back down. 92.5 was .72. this group had two rounds in the same hole and one flier. I figured I would start to see pressure signs at this point however everything looks good. 10 groups with only two over 1" seems like a good start. Next weekend I will continue 92.5 to 95 gr unless I see the pressure signs. Then tweak the load and OAL to "hopefully" .5 or better. I do not have a crony so I don't have a clue as to the velocities.
Anyone shoot a factory 26" and know the ball park velocities I may be getting? I was shooting at 3000 feet ele and 80* temp
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  #2  
Old 05-06-2012, 10:41 PM
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Join Date: Jun 2011
Location: New Mexico
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Re: 30 cal 215 gr. HYB

I would say that you are around the 2950-3000 fps area. I loaded for a 26" 300 RUM and found pressure signs with 94 gr of retumbo. It's most accurate load was 92 gr at 3040 fps avg. All guns are different so the only sure way to know is to chrono it.
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  #3  
Old 05-07-2012, 04:29 PM
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Join Date: Sep 2010
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Re: 30 cal 215 gr. HYB

Quote:
Originally Posted by Korhil78 View Post
I would say that you are around the 2950-3000 fps area. I loaded for a 26" 300 RUM and found pressure signs with 94 gr of retumbo. It's most accurate load was 92 gr at 3040 fps avg. All guns are different so the only sure way to know is to chrono it.
Hi Korhil
What was your accuracy like with that bullet at the 3040fps?
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  #4  
Old 05-07-2012, 06:16 PM
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Join Date: Oct 2011
Location: Tucson AZ
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Re: 30 cal 215 gr. HYB

Thanks, I'll post my results when I get em.
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  #5  
Old 05-07-2012, 07:51 PM
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Join Date: Jun 2011
Location: New Mexico
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Re: 30 cal 215 gr. HYB

It was right at 1/2" at 100 yards. I took it back to 300 yards and it shot 2" groups. I was only doing 3 shot groups. It was a winchester 300 RUM with that skinny sporter barrel. Those barrels really heat up fast!
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