Thread: Pressure Variations and Load Data

A big issue is "we" really only "see" US reloading data and gun writer witterings.

There is other data/information out there but it's hard to find in either print or internet form and is practically never in English, I've seen stuff in German and the Scandi languages, and I once saw a manual on the SA powders that was just so far away from US loadings for the likes of 375 H&H and 9.3x62 . . . .

There are now appearing in the US guys with their own pressure measurement equipment doing some interesting tests - I saw a utube video on 6mm ARC that was very interesting and had a sophisticated look at pressure data including just where the peak occurs etc.

None of this stuff (manuals, data, other people's loads etc etc) will ever replace the basics as GPM points out - work up, use and understand all the load is telling you.