Originally Posted By: steve garrettso is the bolt carrier just opened up to allow the larger bolt?? in your own mind what do you feel is better about your bobcat wildcat over one in a BR case? I suppose yours has slightly more case compacity. in my mind if this could be perfected it really makes the ar 10 just a big clumsy rifle
you don't have to do anything to the carrier, the bolt on the back half is the same as a standard bolt it goes right in to a standard carrier
i did mine because it has more case capacity, there is no fire forming, can be made from any 308 based case -- but 6.5x47 lapua lasts the longest. and i already had the 270AR so i had dies and everything i needed to make the brass.
i also did it because i wanted to do my own wildcat i have bought many wildcat chambered barrels and i wanted to do my own. there wasn't a 25 on the br case that i knew of so i did it.
now i am going to make a 7mm version so i will have 25,270, and 7mm all on the same case.
draw backs yes there are draw backs you have to neck turn and ream to make the cases but that just makes it more accurate in the end. it isn't that bad making the brass, i have made a few video's to help guys with their 270AR's and i made one for my bobcat all the steps are the same except one you size up the other size down.
there are several guys now offering brass conversion including myself for those that want to get in on the 270ar we will convert the brass to help out then it is just loading like any other round.