Re: CB in 7.55 Swiss. I am still skeptical at my friends' assertions the the Lee 312-155-2R will work in light of another casters view that the bullet has to read .301" 0.17" up from the case mouth to fit right (it doesnt). I've about decided to use the little 134gr 311410 from Lyman which you see here in my .30 carbine loads.
It DEFINITELY wont hit the chamber mouth ;>)