![]() Have you shot your 458socom with cast boolits,I'm leaning towards getting a big bore before a 300BLK now.I'd like to wait and see what everybody has been using and likes before getting a 300BLK.I've read the 458socom is well liked and the same with the 450BM.The only thing I am wondering about with the 450 is will it feed well with fat metplat boolits,I've read the socom feeds them easy and it's accurate.The 450BM is accurate also and there is a new type crimper that is suppose to work better with it.I like hornady stuff,it's good quality and they will be around forever probably.I can always run my lubed 458 boolits through a lee. Also shoot 6.8, 5.56, and long range is a 6mm BRX. 338 Spectre barrel coming and the new 338 swage die BT Sniper is building is going to be awesome for some sub sonic bullets. Just wondering if all of you that are smarter than me have ruled this out before. Wondering if it would feed from an AR mag, etc. 450 bushmaster or socom brass around the pasture when chasing pigs is a big turnoff to those cartridges, but I could wrap my penny pinching head around losing modified. Seems to me that the 450 bushmaster proves this wrong. 30-06 case if you need more length.Ī buddy and I mocked up a cartridge like this 10 years ago but didn't think it would headspace in an autochunker. 429 caliber bullet? Seems to me that this would solve the crazy brass price issues with the bushmaster and socom, and still have a good bullet/boolit selection while giving performance similar to a. 308 case with the neck cut off and sized (straight wall) to a. 450 bushmaster and others using a case head diameter that is the same as. Saw a post somewhere back in this chain about. If I were to get another upper I'd probably opt for something 35 caliber, just seems right to me for a cast boolit slinger, 450BM would be a good choice as well. In hunting terms realistically either one is a good sub 400yard gun for deer size critters. And it betters the 6.8 SPC and other possible choices.Īctually if you compare Spec II 6.8 ballistics the two are virtually identical and the 6.8 doesn't suffer from the broken bolt issues that the 6.5 Grendel does. I'd have to say I'd choose the 6.5 Grendel then, with right bullet you can match 308 at 1000 yrds in energy. So it sounds like your looking for the long range not up close energy transfer so I can leave out the various. I was looking at one of the WSSM and the 6.5 Grendel." (I'm still working on having dual gas ports) but of course this requires you like suppressed guns to really enjoy.īut you said "I would like to get as much energy as possible out of the ar-15 platform. You can set up with dual port barrel and with turn of a screw go from pistol to carbine gas tube length. advantages - 30 cal bullets from 70-250 grain cast or jacketed - only need to change barrel and it's back to 223 - works subsonic and supersonic and miserly on powder and easy on the rifle. When I did that it was 300 fireball aka 300 whisper ala 300 blackout - now with factory ammo availability and you can always convert 223. Hmm so many AR choices besides 223, you asked "If you were going to build another rifle what caliber would you build ?"
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