You should also keep ammo in mind. I tend to have more .308 ammo than I do .44. I'd personally recommend the Repeater for the accuracy, as I've seen bullets leave Sniper Rifles at something like a 45 degree angle... I usually carry just 2 frag grenades, which is enough to deal with most enemies that need a grenade and I can always find more in boxes and whatnot. I've stopped carrying frag mines, since I really had no use for them. If you really need a good way to deal with a fast melee opponent, I'd recommend using the Dart Gun.