I know it is a compressed load in a 220 Swift shell, especially with the 405 gr cast, gas checked Line-o-type bullet, but as I was putting my new rubberized high-lift cam, along with the new high compression radiator bolts in my D-15 Cat cowdozer, using my left-hand metric crescent wrench, it came to me that maybe I should switch from 246 grs. of Bullseye to 426 grs. of Unique and a stronger action to handle the pressure. And I am still having trouble figuring out where to put the new blinker fluid in the Cat cowdozer. I am hoping that Mran 10us can help with the crescent wrench! Kidding, I'm kidding.One more very important piece of advice-better give your heart to Jesus as your saviour if you are any where near when the trigger is pulled igniting 246 grains of bullseye lol