I can see there's a difference of opinion on the topic of pressures.
When I got my .445, I also got a set of loading data, or rather two sets: one developed for the .445 ETG brass, and using 40,000 c.u.p. as the upper limit, and another set for modified 30-40 Krag brass, rifle primers, using a significantly higher pressure - maybe 50K.
Anyway, using the Krag brass does permit hotter loads, and it's these hotter loads I'd like to also be able to use in a rifle.