Favorite milsurp rounds?

[Mr. 16 gauge]

Excluding the U.S. military rounds (.30-06, 308, .30-40 Krag, .30 carbine, ect), what are your favorite milsurp rounds to tinker with? I've shot a sporterized M96 mauser in 6.5 Swede that I've taken a fair amount of game with (well, for me, anyway), and I had an 8mm Mauser 93 that was a bit of a disappointment (due to the gun...not the round itself). I have always wanted to try the .303 British Enfield, but never got around to it, and I did play with the 7.62x39 back before there was a plethora of reloading components for it (had to use .308 Sierra 125 grain SPs....no 123-125 grn .311 bullets made at that time!)
Never had a desire to work with the 8mm Lebel, or the 6.5 or 7.7 Jap cartridges. One that kind of interested me was the 7.65 Belgian, but that one is kind of unheard of anymore.