You shouldn’t need to modify anything on that rifle to hit steel at 1000. As far as accuracy, that is up to your own standards. Everything can effect that. Bipod, glass, barrel, even the hand guard. I have an RPR in 308 with a 20” barrel, paper city hand guard, 20x42 SWFA SS, Harris bipod, and it reaches 1000 just fine. If you’re looking at competing, a lot of guys are going with the 6.5 Creedmoor due the the faster and flatter tragectory. Glass is usually Nightforce, Vortex etc. Many are using custom barrels. Harris and Atlas are common bipods unless you’re looking at a dedicated F class setup. Midwest and Seekins offer great hardguards with very little flex. The sky is the limit, but that rifle should hit steel at 1000 out of the box