A 25 caliber bullet with the powder charge of a .30-06. Bet it's a speedster!
100gr at about 3,200ft/s with 2,300ft.lb.
That's a pretty conservative load too. My good friend pushes 85 gr Noslers @ 3600 and 115 gr @ 3200 his 20" 25-06. My 20" 270 really likes a 90 sierra HP @3650, burning just shy of 58 gr of H414. Granted, case life on my load is awful and leaking primers are a common sight.
All the -06 parent cartridges are fast buggers. A slow twist 6mm-06 is on my bucket list as well to send 55 gr Varmageddons at warp speed.
Greyson