450 Bushmaster load data

[Craig0ry]

looking for any and all data that you guys have personally loaded,

I would like to load some 325gr hard cast lead bullets as well, have no clue where to start, data is very sparse. and I imagine most data is for an AR platform, this will be in a ruger scout rifle.

 

[DANS40X]

For starters-
https://shootersreference.com/reloadingdata/450-bushmaster/

 

[Craig0ry]

Definitely not a popular cartridge for loading up here it seems.
being mine is an m77 action and reports of it being able to handle up to 60000psi unlike the saami max of 38000 for the AR15 loads, I'm going to do what others have done on other forums and follow 460 S&W(exact same case volume as 450bm) load data. opens up a world of bullets and powders.