My apologies and thank you for correcting my incorrect description. I was going off the statement someone made that it was like the Nosler but longer. I misunderstood/assumed they meant case length vs cartridge length.
So basically its very close to a Nosler loaded properly with long high BC bullets in terms of COAL but with the reduced body to that of the rebated rim and the corresponding reduction in powder. At that COAL it will work well in many of the LA Receivers and even a number of the DBMs.
So its very close to a improved 300 winmag case without the belt in terms of performance but a bit more capacity as its body base diameter is that of the belt not the body.
My guess is with the strength of better current Winmag cases they can take more pressure and thus top accuracy node could be very close to each other. I agree its actually a really good idea in terms of design as it addresses a number of design weakness but one........
The Hrdy brass kills it unless they change their process for this case or contract it out. I find the Nosler/Norma brass about as soft as I want to go for my liking and its a clear step up in hardness but still a good bit short of Lapua, ADG, Peterson in terms of strength.
Now it might have been a serious winner if it had been the 300 LCM (Lapua Compact Magnum) little brother to the Lapua Magnum.
I have personally not had issues with rebated rim cases but I use center feed mag. Even the gas auto guns like the AR format do not have much of an issue with rebated
(or sharp shoulders for that matter) but again its when they are setup as center feed.
