Tahr, my .303 has an excellent bore and will shoot 1.5 inch groups with the army open sights. With a scope who knows, maybe a bit better. But this is with handloads. With PPU or Winchester factory ammo it will do 3 - 4 inch groups so I thin a lot of the problem is the factory ammo. (When I say "handloads", I mean I loaded up the cheapest bullet with the max load in the ADI book and then shot it a couple of times. It's a .303.)
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