Worked on elk loads for my son's lefty 9 twist Weatherby, tried Partition, AB, ABLR, HH, HHT; and, LRX. 160AB was pretty good with H4831SC around 2950fps. ABLR not so good groupings. 145 LRX ok. I settled on 143HH and H4831SC at 3233fps giving just under 1MOA at 200 yards. The 132HHT was...