I really like Lil'gun and a 265LBT at about 1200fps but I think the softpoints would be better for deer. I think the best slug would be a LBT with the noise softened. I keep waiting for some partition handgun seconds but they are not available very often.

Unless you pick an extremely fragile bullet more speed just means a better trajectory. Anything approaching 300gr at 1000fps is going to be tough to keep inside a deer.

Hunt hard, kill clean, waste nothing and offer no apologies.

"In rifle work, group size is of some interest...but it is well to remember that a rifleman does not shoot groups, he shoots shots." Jeff Cooper