AR-458 Win

Mark A Ouellette

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I WANT ONE!!!!!
 
A .458 Win AR would be a hoot! A reduced recoil, take down, easily maintained dangerous game rifle! The .338 Win AR's are available so the step up to .458 should be a heavier bolt carrier, recoil spring, and buffer. Hmmm... :)

If a semi auto military style rifle were legal in African countries I would start building one.
 
A .458 Win AR would be a hoot! A reduced recoil, take down, easily maintained dangerous game rifle! The .338 Win AR's are available so the step up to .458 should be a heavier bolt carrier, recoil spring, and buffer. Hmmm... :)

If a semi auto military style rifle were legal in African countries I would start building one.
A 338 win mag ar would be a lot of fun. I have a 358 win ar and love it
 
I have a DMPS pattern AR-10 in 45 Raptor. That is a rimless 460 S&W.
Awesome whitetail cartridge.
 
I had Scott Medesha of https://www.raptorarizona.com/ built mine.
I have built AR-15's but getting the action to cycle fool proof was something I figured Scott could do better than I could. The darn Raptor is a 3500 ft lbs of energy hammer!
 

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Noreen makes a 338 Lapua version. Since that is a necked down Rigby, that would allow use of the 416 and 450 Rigby as well as the 378, 416, and 460 Weatherbys.
 
You can also get a 458 BLR

 

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Sounds heavy. But it would make a good prop for the next Jurrasic Park movie.

Fun fact Marlin lists recommended game for its rifles (bear, moose, deer etc). After Chris Pratt used a Marlin 45-70 in Jurrasic World they added a T-Rex to their game chart.
 
I always thought he carried a 450 marlin.
I’m with Forest, a 20 round mag of 375, would solve a lot of problems.

If 20 rounds of 375 don't solve the problem you have very big problems!

I don't think Marlin even offers that rifle in 450 Marlin. I view the 450 Marlin as sort of pointless since we already have the 45-70. Now if Winchester had created a 450 and put it in the Model 94 40 or 50 years ago that would have been something (yes I knew there were a few 450 Marlin Model 94s made, but after Marlin dominated the big bore market and just before Winchester went under).
 
I just got one build for me in .300 WinMag. They also offer them in .338 Lapua and .338 Norma Magnum. As German civilian you can’t have .338 Lapua in a semi auto rifle so I chose the .300 for me. A .458 would be nice.
IMG_4298.jpg
 
Agreed, it must be fun fun to do some plinking with it but no sport in hunting DG with it..
 

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Ray B wrote on JMJ888's profile.
I am righthanded, so not interested in the rifle, but I have a 375 RUM and 350 gr bullet loading data is very hard to come by. If you could reply with information regarding your loads I would greatly appreciate it. Thank you, Ray Boone, Leavenworth, WA
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