Home Forums Reloading Big Game Rifles reduced loads using Blue Dot or similar

I plan to use 286's and 250s. Velocity isn't as important as building enough pressure to keep the shoulders properly formed, so anything from maybe 1400-1800 would likely be fine. I've been using trailboss to shoot cast 286s at 1350, but after a couple firings the shoulders go wacky with the lack of pressure. Thanks.