Yeah I always seat em in the rear. IIRC I ran only 19 gr of H110 which is the same as 296, and that is listed as max in the book?

I think that Brian guy who writes on revolvers for Wolfe Publishing did something on HEAVY magnum loads for the Redhawk/Super Redhawk. I set that one aside for future consumption, but still don't think that 300 gr XTP is what I want for deer.

Have you hit a deer w/ one loaded to the ultra-max like you're describing? Milk jug even?