someguy2800
Member
I've got a 7mm tcu barrel if you're interested. .
nope, I’ve had one of those before though
yes that is a good platform for the ham'r and a good use for it plus you will not be blasting that ammo with a semi auto
I think it will be a good fit for it. A contender has about the same bolt thrust limit as an AR, so just like with an AR if you increase the bolt face size you have to reduce pressure. A 223 bolt face will allow for a full 60,000 psi pressure. I noticed looking at the specs for 300 ham’r that the case length is the same as a 357 maximum, and the base diameter of 223 and 357 are also the same, so MGM is going to make me a custom chambered barrel for a rimmed 300 ham’r. It just takes a single pass through a 300 ham’r die to form 357 maximum brass into 300 ham’r and then trim like .020” off. I’m not wild about the 300 ham’r name so I asked them to mark it as 308 maximum instead.