I ran a 7mm SAUM in a full on 17 pound bench gun.
The idea was to run a 195g EOL It was set up with a "bore rider" free bore.
I tried two different barrels from very well known makers. One with a 1-8 twist other with 1-7.5 twist.
I pulled my hair out trying to make it competive.
Never had any luck with the 195..
Unreal velocity. I leaned hard on this thing and never opened a primer pocket. Which even now I find hard to believe..
Finally got the 180 hybrid to kinda shoot but it wasn't going to win any matches.
Eventually rechambered for my 300 SAUM.
Took a couple of matches to get the cases ironed out and won the 3rd match I shot with that barrel against 160 other guys..
Buddie had the bore rider in a 284 Win.
He's not shooting it any more either.....

Dace

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Only accurate rifles are interesting.