concerning pressure there is no problem with the 6x70 it was built for old combination rifles with out of date ctg.

it is a 6mm v0 750 m/s e0 1630 j

www.norma.cc go to jakt then sortiment and 6x70R

around here the operation cost about 750$ and denmark is one of the most expencive countrys to have anything done.

hope this can help