01-12-2019, 05:40 AM
LRRPF52 Wrote:What type of performance are you looking for with this?
Duplicate .35 Remington mv with 150gr, 200gr, and 225gr from an AR15?
Looking at the .35 Remington's SAAMI working pressure, I see that its MAP is 33,500psi for the first decade of the 20th Century actions like the Remington Model 8 semi-auto rifle.
With the Hornady 200gr FTX and its advertised .300 BC, at 2050fps you would get:
..0 2050fps 1866ft-lbs
50 1923fps 1642ft-lbs
100 1801fps 1441ft-lbs
150 1685fps 1261ft-lbs
200 1575fps 1102ft-lbs
Looks like a 150yd zero would work best, putting you 1.8" high at 100yds, and 4.8" low at 200yds.
A 16" 6.5 Grendel with 123gr SST passes it for energy at 175yds.
If you push the 200g FTX to 2100fps, then you will exceed 123gr SST ballistics to 200yds, but 123gr SST will pass it by 225yds.
If you have boxes of .357" pistol bullets for plinking, that could make it fun provided you have the brass to support that.
The 358 MGP is getting 2500 fps with a 180gr bullet. This is a 6.8 SPC case so the pressure would be 55K psi not 50K psi as with the Grendel case.
This would be a short range woods cartridge suited for Eastern US type hunting with better than 35 Rem ballistics from an AR15.
It really is not meant to compete with 6.5 Grendel for long distance.
Probably the easiest way to get this type of cartridge would be to just buy the 358MGP barrel with dies.