I guess I should classify that, sorry. I mean for the heavier match bullets such as 180 and 190 gr 7mm. That's gonna be hard to get a compressed load and not have to pound the bolt open. My brother's 7mm wsm
that we just built is NEVER gonna use a compressed load. The starting loads on the winchester site are at the upper limit and nearing dangerous in that gun. Same goes for mine. If the gun is tight, and I mean real tight, then you won't be able to do what you are saying.
S1, IMHO, I would say that you are correct for a gun made with a reamer, because they are all throated loose. Mine is not. Well, that means you are correct for 99.999% of guns. The throat job is going to be a considerable factor in the load this person can shoot. If a good job is done just on sealing the necks, the gun will become efficient enough to need the powder backed off. I think compressed loads are for small cases like PPC's and loose guns such as a freebored one (weatherby, rem VS). That's why guns are freebored anyhow is because it limits the liability for the companies who make them.
[ 02-11-2003: Message edited by: 4mesh063 ]