I dont know on the 300gr Scenar because I have never shot them, but I have shot the 338 250gr Scenar and 6mm scenars, they have less expansion than a FMJ. Scenars are awesome target paper punching bullets but have zero (00000) use as a game bullet unless you prefer wounding animals instead of harvesting animls.
I wonder if the 300 gr scenar is going to be good on game over the 250? I have read here that the 250 smk does not do good on game but the 300gr.smk is a hell of a bullet. Do you all think that the scenar will not be the same? Maybe they will be made with thiner jackets.
I shoot the 155 scenars in my .308 and they suck on animals but my buddies 6.5 shooting the 139 scenars really blasts the hell out of anything.