Break the crimp , by seating the bullet just 1/16 th inch deeper, before you try pulling them. I know seating them deeper sounds like the wrong thing to do but once the crimp is broken they pull a lot easier.

According to Lyman loading manual that charge of Blue Dot is just 1.2 grains below the maximum load.
It is a magnum load , do you know/trust the loaders skill ?
Shooting them will have to be your call . There are some loading friends I trust and some I don't . If loaded correctly they should be safe.
Check with Alliant about the Blue Dot in 41 magnum loads , their load data center has an "ask the experts " feature ...ask !
I only found loads listed for Unique and 2400...not much at all.
Gary