I have a slightly diff. veiw point. I do shoot 150gr everytime. I'm looking for a one shot deal and make it count. When I load I have no idea of how far away mister big is going to step out but where ever it is my shot is square through the shoulders. Many problems with pellets is even a small amout of moisture in a pellet changes its performance now times that by 3 and you have problems. Place a gel pack in the box and seal it in a ziplock. During the off season vacuum seal the box. I shoot Barnes 250gr and in the t/c they are a bugger to load but they are tack drivers. Now for my second shot if ever needed I have a powerbelt 245gr ready to go. Yes they shoot diff, the power belt shoots low 3" at 150 yards but it is just a follow up if needed. Yes 150gr kicks but honestly I have yet to notice when looking at Rack on the ground.