You could build a nice bolt gun with a switch barrel system. Like a Defiance, Surgeon or even stock Rem 700SA (trued, with thicker recoil lug and tighter fitting bolt). Have your Grendel bolt and barrel for short/medium range hunting and target, then switch barrels to say a 6.5 Creedmore for long range.
If the competition stipulated AR15's only you would be competitive but outside that bubble it is the poor cousin of every 6.5 with a bigger boiler room.
If there is any wind on the day you shoot 1,300 you will be throwing money down range for little satisfaction. It will be like driving jelly. But, at 100yds it will be a tack driver.
Sticks is on the money with the Sporting Rifle Match at Raton. I've only been there once yet it taught me so much with its unforgiving format. Plus there are some really good shots and guns, mostly the larger 6.5's; 6.5Cr, 260R, 6.5*284, 6.5*47. They would welcome you with your Grendel but it will never be competitive (unless shooting against similar calibres only).
If the competition stipulated AR15's only you would be competitive but outside that bubble it is the poor cousin of every 6.5 with a bigger boiler room.
If there is any wind on the day you shoot 1,300 you will be throwing money down range for little satisfaction. It will be like driving jelly. But, at 100yds it will be a tack driver.
Sticks is on the money with the Sporting Rifle Match at Raton. I've only been there once yet it taught me so much with its unforgiving format. Plus there are some really good shots and guns, mostly the larger 6.5's; 6.5Cr, 260R, 6.5*284, 6.5*47. They would welcome you with your Grendel but it will never be competitive (unless shooting against similar calibres only).