95 gr, Partition with a lot of RL 26, Rem. 9 1/2 primers, and Nosler brass. 48 grains of RL 26 in a 22" barrel will get you in the 3140ish fps area.
This x2 is what I'm loading. I stocked up on 95 grain partitions way back when the 100 grainer was a sort of semi spitzer. I have not found a 100 gr. bullet that was not a go for the 243 but this is one time that I recommend a premium bullet for deer hunting. The sub 6mm calibers will do fine most of the time except when they don't so in smaller calibers the added assurance of a premium bullet is nice to have.