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Shooting a 454 Casull from Magnum Research, I actually felt the factory stuff was very weak. I loaded up some Hogdon recipe 300gr XTP at 30.0gr H110, and didn't feel like I was really THAT much hotter. I think that data put the pressure at like 53K, and the cartridge is rated up to 65K. It seemed there was some power left on the table there. I dug into some old data, from various non-published resources, and found loads up to 32.5 grains.
I could not bring myself to jump right in at 32.5gr, but I did do a .5gr ladder from 30.0gr up to 32.5gr.
Long story short, no notable felt recoil change, no notable difference in report on steel gong, and no notable change in noise or fireball. (As witnessed from a bit back.) No chrono was available.
Is this one of those times when the added powder and pressure just do not gain much down range?
CAUTION: This post includes loading data beyond currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, The High Road, nor the staff of THR assume any liability for any damage or injury resulting from use of this information.
Shooting a 454 Casull from Magnum Research, I actually felt the factory stuff was very weak. I loaded up some Hogdon recipe 300gr XTP at 30.0gr H110, and didn't feel like I was really THAT much hotter. I think that data put the pressure at like 53K, and the cartridge is rated up to 65K. It seemed there was some power left on the table there. I dug into some old data, from various non-published resources, and found loads up to 32.5 grains.
I could not bring myself to jump right in at 32.5gr, but I did do a .5gr ladder from 30.0gr up to 32.5gr.
Long story short, no notable felt recoil change, no notable difference in report on steel gong, and no notable change in noise or fireball. (As witnessed from a bit back.) No chrono was available.
Is this one of those times when the added powder and pressure just do not gain much down range?
CAUTION: This post includes loading data beyond currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, The High Road, nor the staff of THR assume any liability for any damage or injury resulting from use of this information.