55 gr of MR-3100 (Old accurate bulk powder) behind 120-140 gr bullets have worked well for me for at least a couple decades, that combo has killed many truck loads of Antelope and Mule deer in southern WY, back when you could buy a General Lope tag over the counter and as many Limited Quota doe/fawn tags as you wanted.
The same amount(55 gr)is a good starting point with 4831. RL-22 or IMR 7828 like about 60 gr. IMR 4350 with similar charges will do the same thing as the 270 with similar bullet weights. A "pet load" I like to shoot is 30-35 gr of 4227 underneath a 87-100 grain bullet. If an SP this makes a great deer load out to 150 or more yds for "younglings" and the HP is great for varmints of the canine variety.
