It would be hard to beat the bullets you already have! I have taken many game animals with the 300 SMKs.
This last year I was fortunate to take 3 deer with the 300 Berger OTMs out of my Edge at a velosity of 2,820 fps. 1st one shot at 50 yards. Bullet retained 50% weight. 2nd one shot at 585 yards. Bullet when through leaving a nice 50 cent/half dallor exit. It expanded well considering no bone was hit. 3rd one was shot at 1,697 yards. Bullet hit right behind shoulder and went through both lungs and exited and did not expand. I shot the deer a second time and hit bone and got great expansion and penetration as the bullet exited as well.
Considering the extra cost of the custom offerings its hard to beat the Bergers. I will be sticking with the Bergers for now. Just my thought of course. Best of luck to you.