Savage lists 14 rifles in 400 Legend - Just a Barrel Swap away from 6.8 SPC

Looks like good potential for an AR 15 hog hunting cartridge or dedicated subsonic SBR. While I really like 458 SOCOM cost and availability of brass is still a problem. If this catches on could be a good choice for taking on the 458 SOCOM role if able to buy brass at a reasonable cost. LeHigh 195 grain Controlled Fracturing copper solids but unfortunately they don't offer any 40 caliber rifle bullets. Downsize their 0.416" 350 grain projectile or some of the heavy 458 bullets, I have a 40 caliber NOE 245 grain gas check bullet mold but its the heaviest bullet I can cast in that size.

Done some Google searching and at present almost nobody makes a 40 caliber rifle bullet or bullet mold. Everything in 40 caliber is dedicated toward handguns so unless the aftermarket bullet companies and bullet mold companies (most will cut a custom mold in a heartbeat) embrace a 40 caliber rifle bullet line its the limiting factor for this new round. If stuck with only one or two factory loadings it will die o the vine fairly quickly.