First, understand that any reccomendation I make will be for an LBT bullet design, because I make them and believe they are the best available. Furthermore, I don't believe anyone can proove me wrong!
I reccomend my LCFN design, due to the short neck and probably short throat. Make a throat slug and send it to me with your mold order and I'll cut the maximum weight the gun will handle properly, which isn't likely to be over 170 gr. Use air cooled wheel weight metal which has 1% tin added, LBT lubricant, and drive them to the maximum velocity your rifle will shoot them accurately. Most rifles in this class will get 2400 fps or more with air cooled ww alloy bullets and LBT lubricant, and effective range for certain expansion will be well over 200 yards. In other words, softnoses would be a waste of efffort unless you wanted to take game at longer ranges. Softnoses provide certain expansion at well over 500 yards, when the right alloys are used.