I use mag tech brass all the time for my Casull and .500 S & W mag.Encore.I know Mag Tech loads em to max on the factory loads,my lot ,back in 2000 was pushing 1860 f.p.s. with a 260 s.p. out of my 7 1/2 SRH and I never had issues.I would call mag tech and see what they have to say could've had some hotter lots go out ,ya never know.

H.H.I.#8190 Colossians 1:17 And He is before all things,and by Him all things consist!