The good old ought-six started development in 1903 and finalized in 1906, the Mauser cartridges I mentioned, 7x57 (1892), 7.65x53 (1889), 8x57 (1888/revised in 1905), the 30-30 (1895), the 300 Savage is the youngster (1920). I might be a little off on the dates but these rounds are as good today as they ever were. Don't get me wrong, I got nothing against the new stuff, modern rounds sell guns! and keep our industry going, it can always use a shot in the arm (no pun intended), I just appreciate what those pioneers did for us way back at the turn of that last century. Lovin life, and keeping those old girls shootin!