My wife has been having trouble connecting on deer (250ish yrds) since moving to a new stand (great stand) were she can now shoot as far as 400 yards. I know this has been talked about alot but I always like to get fresh info. I had ordered her 115 grn berger for a bolt action Rem 700 cdl .257 wby mag sf we have. She was shooting an old semi 742 since most my family and friends reload for me and and already have the Nosler AB 110 and nosler 100 partitions. I want try the Partitions because it will be stronger if she has to take a 50 yrd shot on a deer at such high velocities but still at those velocities they should loose some weight and cause extra damage.. My friends love the bergers. But Im worried bout her getting a 40 yd shot on a big buck and what if her only shot is the shoulder? Im confident that at these velocities the bergers will kill well with a chest shot. But if she only get a shoulder shot they worry me. I would like to try them all but I dont like chancing wounding deer so saying that I can work up a good 33-3400 fps load for her 257 wby mag which bullet knowing that she may have to shoot her buck in the neck, shoulder or chest at up to 300 yds and farther. We live in the woods and can shoot alot and what ever load I decide she is going to practice WAY more befor next season.