My son has left me with a Ruger Hawkeye Compact with a laminated stock in 260 Rem. It's a handy little rifle and despite the fact that I'm 6'3", I like shooting it. What I'm wondering is what bullet would be effective on deer and how fast would they need to be pushed. So far all I've shot is a saeco 264 with straight ww at ~1200'/sec with five shot groups of an inch and a half at 100 yards, all day long. I cull them pretty ruthlessly and seat them with very low runout to get those groups but I'm pretty proud of them. But what do I need to reliably take deer up to 100 yards?