So, how many .308 rounds were not originally a military round? 300 Savage and .300 H&H were a couple.
Let's see.
30 Carbine, 30-40K, 308 Win, 30-06 all were Military that later became great sporting rounds.
30-30 is a half and half.
It was adopted by Mexican rebels and by the US Army in 94's during WWII. was a sporting round that was pressed into military service.
I think 300 Savage was sent to a military trial once or twice. After all is is just a short 308.
I also thing the 300 Win was pressed into service as a sniper round at one time or another and the 7mm Mag is used by the Secret Service counter snipers.
Most Military rounds have found use as Sporting rounds. 6.5X55 Sweed, 6.5X54 Manlicher, 7mm X57, 30-40K, 308 Win, 30-06, 8X57, and 45-70
there are sporting bullets for .264, .284, .308, .311, and 318 (the old 8X57) and .323 (current 8mm)
Add to these all the cartridges that these cases have spawned.