SAWMAN
Master
Got new flyer from the guys st KAK Industries. They are offering a 450Marlin and a 300WSM upper for the larger framed AR guns.
The 450Marlin has been around for some time now. It is basically a 45-70 with a much stronger/thicker web so that the case pressure levels can be increased. Also it is belted to prevent it from being loaded into a 45-70 chamber. It produces the same power levels as a 45-70 loaded to the Ruger #1 and Mauser action levels. HOT !! Wondering how an AR with a belted chamber will work ??
Being .458" bore there is a good variety of bullets offered including solid copper and brass. For me it would be no all lead due to the gas system of the AR.
Then there is the 300WSM offering. I have been researching this one. It is right up there with the 300Win Mag. Actually a little over depending on the load. It's clear advantage would be for the AR shooter doing the extreme distance thing. (forget them expensive NEMO's) Some of the smaller bore WSM/WSSM's have a problem with the AR action reliably chambering a round. But this mainly shows up with the 223 and 243 guns. The question for some would be loading the 300WSM to mag length,how big (long) of a bullet could you use and still fit into the mag. For the longer ranges most would want to use a 190 and above.
Mags . . ?? . . there are no dedicated mags for these guns. The 308 sized MagPul's are suggested,but only a "few" rounds can be loaded before the mag starts to buldge and it will not insert or drop free. ( Kinda like using the MagPul 5.56 mags for my 6.8SPC. I can only load 6 or 7 rds in a 10 shot mag.)
Without offering a MagPul or AICS type mag to use with these uppers I do not believe that many will buy.
Also,KAK sez that these uppers will simply pin on a DPMS style lower. GREAT !! But I am wondering about the effects of recoil. There is quite a bit of case head thrust with both of these chamberings. We'll see . . . long term. --- SAWMAN
The 450Marlin has been around for some time now. It is basically a 45-70 with a much stronger/thicker web so that the case pressure levels can be increased. Also it is belted to prevent it from being loaded into a 45-70 chamber. It produces the same power levels as a 45-70 loaded to the Ruger #1 and Mauser action levels. HOT !! Wondering how an AR with a belted chamber will work ??
Being .458" bore there is a good variety of bullets offered including solid copper and brass. For me it would be no all lead due to the gas system of the AR.
Then there is the 300WSM offering. I have been researching this one. It is right up there with the 300Win Mag. Actually a little over depending on the load. It's clear advantage would be for the AR shooter doing the extreme distance thing. (forget them expensive NEMO's) Some of the smaller bore WSM/WSSM's have a problem with the AR action reliably chambering a round. But this mainly shows up with the 223 and 243 guns. The question for some would be loading the 300WSM to mag length,how big (long) of a bullet could you use and still fit into the mag. For the longer ranges most would want to use a 190 and above.
Mags . . ?? . . there are no dedicated mags for these guns. The 308 sized MagPul's are suggested,but only a "few" rounds can be loaded before the mag starts to buldge and it will not insert or drop free. ( Kinda like using the MagPul 5.56 mags for my 6.8SPC. I can only load 6 or 7 rds in a 10 shot mag.)
Without offering a MagPul or AICS type mag to use with these uppers I do not believe that many will buy.
Also,KAK sez that these uppers will simply pin on a DPMS style lower. GREAT !! But I am wondering about the effects of recoil. There is quite a bit of case head thrust with both of these chamberings. We'll see . . . long term. --- SAWMAN