[RedsHunter]

The Washington killer has been using a .223 caliber projectile, which some have called a standard sniper bullet. But Mawhinney, who lives in Baker City, Ore., said a professional sniper would use a heavier load, at least a .30 caliber.

Absolutely ... and a professional shooter would also be more likely prefer to use a bolt action piece such as a Model 70 or an '03, for instance, because they're so much more accurate than using a semi-automatic rifle such as the M15, or even an M-1.

[mamelukesabre]

.338 lapua magnum

hehe, now THAT'S a sniper round.