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Best long range elk load for a 300 RUM?

 
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  #22  
Old 09-22-2007, 10:19 AM
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This difficulty (or impossibility) of using kinetic energy as a frame of reference is that you can not translate mathematical formulas into actual lethality.

IE...... you can have a 22-250 have the same or more energy with a 45-70. In my experience the 45-70 is a fantastic elk killer. The 22-250 is not.
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  #23  
Old 09-22-2007, 06:25 PM
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Quote:
Originally Posted by Jon A View Post
I'll be using the 240 SMK this year. I like the 200 AB very much as well, but the big 240 penetrates farther, makes a bigger hole, drifts less in the wind and is more accurate in my rifle. It's just hard to say no to that.
Jon A,

What would be the max. velocity one could get out of 26" factory 300 RUM using the 240 gr. SMK? I have a hard time believing that a 3000 ft/sec is possible, I would tend to believe that 2800 to 2850 is more feasible.
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  #24  
Old 09-22-2007, 08:25 PM
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A couple of weeks ago:



From a 26.7" barrel. That's a little warm though.

Since this is the first summer I've used Nosler brass, I think my initial (made in the winter) assesment of not having to drop that load with that brass was in error.

Anyway, as you can see my standard load of 101 US869 with Nosler Brass makes 3045 in 80 degree temps. Yes, that's too warm, the brass won't last very long at that.

However, that's the load I'm going to be using without change. Out of a bucket of icewater (refridgerated all night before) that same load chronographs 2970. Perfect.

In short, you can add 100 fps at least to your expectations when using US869. 2950 from a 26" 300 RUM is perfectly mild. Well over 3000 fps, yes, is pushing it. I'd drop that load 2 grains for summer to keep the velocity around or below the 3000 fps mark in the heat.
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  #25  
Old 09-23-2007, 01:51 AM
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Good info. Thanks!!
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Jesus Christ the same yesterday, and to day, and for ever.

Our Lord Jesus said that as it was in the days of Noah and
also as it was in the days of Lot so it shall be in the days...
It's happening again!!! God sent to us His prophet, and His Word
to this generation and we once more are rejecting it as was prophesied!!!

---> As promised, God Sent His Prophet to us!
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  #26  
Old 09-23-2007, 04:16 AM
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As I've mentioned in part earlier in this topic and several others, I'm at or just above 3000 fps with 26" 10 twist 300RUM with REM brass and the 240SMK. Just turn off the high spots on the necks and put the 240's on the lands with 104.5g US869 behind them. 1/2 mile groups are looking pretty good. Gonna stretch out further soon and confirm. Cold weather load. On third or fourth firing and pockets are still good on most of them. Pockets seem fairly variable in REM brass. Some will get too loose (for me) in one or two firings. Others of the same load last much longer...
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Last edited by jmden; 09-23-2007 at 03:58 PM. Reason: typos and left out important info...sorry
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  #27  
Old 09-23-2007, 05:10 PM
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Thanks, jmden. I guess you guys are making a believer out of me!
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HEBREWS 13:8
Jesus Christ the same yesterday, and to day, and for ever.

Our Lord Jesus said that as it was in the days of Noah and
also as it was in the days of Lot so it shall be in the days...
It's happening again!!! God sent to us His prophet, and His Word
to this generation and we once more are rejecting it as was prophesied!!!

---> As promised, God Sent His Prophet to us!
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  #28  
Old 09-24-2007, 11:59 AM
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Thanks for the replys.
I might have to try the 240 gns next year.

Thanks for the input.
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