I saw hammer's post, so I thought I would add.
I bought a benchmark and a green mtn to build 260ai on. I had planned on using the green mountain barrel as a fire forming barrel to build my brass and not burn up my benchmark. I bought it as a cylinder and contoured it to my liking and to fit a stock I had in the pile. I loaded up some match burners and fired a 9 round ladder test.....

that was pretty promising. I loaded 5 of each charge and used 1 in the ladder and the final four to shoot for groups. This is the best it did.....

And this was the second best. ....

All groups were fired at 122yds off the hood on a bipod. I was pleased. Here's the platform. I cerakoted it with the leftovers in a pot. It's screwed onto a trued up 700.....
