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Guys lets talk. POWER POWER POWER in the short action rifle

 
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  #36  
Old 11-27-2011, 09:55 PM
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Re: Guys lets talk. POWER POWER POWER in the short action rifle

How about a 6.5mm Super L/R or a 6mm Super L/R? Both short action. Easy to form, and good velocity.

xdeano
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  #37  
Old 11-27-2011, 10:36 PM
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Re: Guys lets talk. POWER POWER POWER in the short action rifle

Quote:
Originally Posted by xdeano View Post
How about a 6.5mm Super L/R or a 6mm Super L/R? Both short action. Easy to form, and good velocity.

xdeano
I dont know what either of them are, but I"m assuming we can get more foot pounds out of larger diamiter bullets.

I just read the whole thread over, as it was more than a year old. I guess what I was looking at when I first started the thread was a SA round that would operate as a repeter. I chose the WSM bolt face as thats what I had, however I would not be apposed to thinking outside the box. Like using a .585 bolt face and basing the round off of a 338 lapua or 470 nitro something like that, again just throwing out ideas.
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  #38  
Old 11-27-2011, 10:41 PM
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Re: Guys lets talk. POWER POWER POWER in the short action rifle

Well it seems that the short action mags are pretty limited in case capacity compared to all of the "mega-mags" that use the long mag cases. Without getting into custom-made brass of specific dimensions, I'd start with the 325 WSM.

Then one has to decide between necking it down to speed it up, or necking it up to something akin to a wrecking ball impact on game.

One could argue that with today's laser rangefinders, the need for an ultra-fast cartridge is arguable. If that's your stance, then I'd neck it up to 338 and use Berger's 300gr Hybrid with a BC of .818 and a "guessed" SD of .375. This will give you a muzzle energy of approx. 4856 ft/lbs if MV is 2700. All the way out to 1000, you still have 1996 ft/lbs to whack critters with.

Personally, I'd say that's getting 'er done in a short mag!
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  #39  
Old 11-27-2011, 11:22 PM
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Re: Guys lets talk. POWER POWER POWER in the short action rifle

You are not going to get those numbers with the 325WSM. I shoot 200 nabs @ 2825. My 338 Norma, which has considerable more capacity shoots the 300 gen2 @ 2725, h20 capcity is 107 grs. I believe in Norma
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  #40  
Old 11-28-2011, 12:17 AM
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Re: Guys lets talk. POWER POWER POWER in the short action rifle

The theoretical example above was written with the idea that the 325 WSM was necked up to 338. So the powder capacity would increase slightly.

Personally, I couldn't find any solid info on anyone who'd actually built one. So I ran some numbers through a calculator and that's what I ended up with.

To my best guess, the MV of 2700 with that big Berger bullet was pretty optimistic....lol.

But hey, who said barrel length had to be under 36 inches?
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  #41  
Old 11-28-2011, 06:00 AM
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Re: Guys lets talk. POWER POWER POWER in the short action rifle

For what it is worth I built a long throated 338 RCM and shoot the 300 gr Berger Hybrids. Using 57 grs of RL-17 and a 29" barrel the bullet is leaving the muzzle at 2575 fps. The bullet is seated with the base even with the shoulder neck junction making it too long for a SA magazine. It is a repeater in a LA. Just added this as a reference.

I would imagine a WSM might get about the same or a bit less velocity with the 300 gr hybrid seated to fit and feed from a SA magazine.
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  #42  
Old 11-28-2011, 08:42 AM
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Re: Guys lets talk. POWER POWER POWER in the short action rifle

Hmmm 2575 eh? Well I guess I wasn't "too" far off with the estimated 2700.


Still with a 300 gr bullet, that's some serious energy, AZShooter.
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