Ok the general concensus is that it's a 30-06. The reason I am trying to find out is that three guys I go hunting with have a competition for after the hunt. We put up a 6" target at about 460 yards away and who ever hits it closest to the center wins (there is a prize). One of the guys bought a new rifle (as did I) and I sent him a similar photo with my round in it with some others. He does not know what I bought (.338 Lapua) and I do not know what he bought. But the round in question is from his new rifle so that's why i'm trying to find out. And if you currious as to what the prize is, we each put in 100 bucks (4 possibly 5 of us in total), we get a $100 day pack from Cabelas, and the remainder of the money goes into a gift card for the same store.
I know he already owns a .300WM, 270, .223 and .308, but I do not know if he owns a 30-06.
Thanks all!