Originally Posted by treecarcass
looking for any info, h414 is my preffered powder but imr 4350 info
will work. i have found substancial differences in 5 manuals
just looking for a starting point, 225gr proj
Well, the starting point starts with the bullet. Just because a bullet is the same weight does not mean the pressure will be the same as all the others of that weight.
Some of those bullets have more surface area touching the barrel, some have stickier metals that grip the barrel, some are solid which make them much harder which react differently than say a Sierra Matchking.
You really need to go by the manufacturers recommended info for the type of bullet you are using.