borrow or buy a typical stock riding bag, build up underneath it with lumber, can shoot them in the bag riding groove or turn sideway and over the top, I had no prob shooting moa groups with a 5.5 lb grendel and a red dot sight on my 15" gong at 206 yards doing zero set up on the red dot with my caldwell tack driver turned sideways, though like I said watch the sling swivel stud spot as they tend to wanna tear into the bag although yours will be out of the way on that lever, not sure anything will simulate how you're gonna shoot that rifle any better than the bag style rest, they are handy and you can shoot little wee half moa groups to 500 out of them with a regular scoped bolt action, I never had problem, mandatory kit with my range gear