well i had hopes of putting togeter a 25 souper improved improved' 45* shoulder an the wall is blown out to .461-2, rather then necking down a 308 case it seems to be easier to neck up a 243 case with a 257 die an then form fire it to the chamber but i just got back some speaks from a friend who put it on the quick load program it reaches 54000psi an at max gets me to 3100 fps with a burger 120 ..re19 / 48.5 out of a 23-1/2" barrel , have no idea where the col will be,the data is only program generated the reamer we located has a lead to throat .106 i think that includes free bore the neck will be short on the case,, so how far i can stick out the bullet i won't till it was put together[ if i go this route]
most of the info came from a pre built winchester i'll be working with a 700 remington action which as a recest bolt face i don't know if the winchester has a flat face or not... would make a difference ?
on the Wyats magazine does the action have to be machined? to make the box fit
i just mite be better putting together a 6m br... i really wanted this souper deal