thanx for your input: i dont know as much about reloading as i should. how do i set the head space by setting the shoulder forward it is a bottle neck cartridge. i got the dies with the gun they were made up special. i thought adding about 4thousands to the base would correct this problem without changing the integrety of the gun???? i notice such an extrusion on many cartridges of this period[1893] .43 mauser etc. this being a jp sauer sxs and some sort of mauser- spanish- russian berdan variation. using bell brass [spanish] i still have a head space problem. it seems your solution is the best if i can be schooled how to go about it. regards