Ok so I am confused. Nothing new right. So there is no

A varmint round. Mauser probably work better for a parent case

is doing fine in an AR-10. The 500 S&W is doing very well in the Marlin. The 366 and a new 375 are both in the testing stages. If all goes well with both, they will be in bolt guns and possibly in an AR-10. But there is a LOT of testing on any semi auto or bolt gun cartridge. One of them is based on the 8mm Mauser case, the other on the 308. I don't want to say positively they will be released until I have a bit more data and make sure they function 100% of the time. I don't want to do like Marlin did a few years back and announce a new cartridge/rifle combo and then find out it wouldn't fly.So hang in there. I should know something within another week.