I shoot a model 700 adl in a 7mm rem mag. The rifle is stock except for a timmney trigger and a homemade bedding and free float job. The rifle will shoot a hornady factory 154 gr sst load at 1/2 moa at 100 yds almost without fail, and I can occasionally shoot 6 in. groups at 600 yds.(if the conditions permit) the gun has 2 kills at over 600 yds. It'll shoot. My question is: Will a custom rifle, built for accuracy from the ground up, shoot this load better than my rifle does now? Question 2: Will my rifle shoot percision loaded handloads better than it shoots this factory load? Question 3: If my rifle can shoot 1 moa at 600 yds with this factory ammo, can I assume that it can hold 1 moa at 1000 yds with the same ammo? (I'm pretty sure the shooter cannot) So, do I need to lean towards a custom built rifle, custom ammo, or both? Any advise would be welcomed. I'll be working out of town for a while. I'll check back when I return. Cheers and thanks.