Dad gone man, you can almost hold 3MOA slinging a rock by hand. I would hope the Marines can hold that with 5000 rounds maybe. Most on this page are looking for something a tad tighter. The magic 1MOA comes to mind. You can get 3MOA with a 200 dollar el cheapo rifle. No problem. Making that gun into a 1.5MOA rifle, is not that difficult with some time but might have to double that price. Cutting that in half to .75MOA is a challenge and usually expensive and much extra care has to be taken. I maybe just talking for myself, but thats what most of us here are striving for.