Thread: Anybody here successfully priming BERDAN for 303 British and / or 7.62 ?

Originally Posted by Marty Henry

The 303 primer was the no 41 and is .251 in diameter and contained mercury and chlorate to the end. The chlorates ok but the mercury does bugger the brass it does something to the grain structure that makes it brittle in such a way annealing cant fix. You might get a few reloads if you are lucky though. The 308 military has a .217 diameter non corrosive non mercuric one hope this helps. I have about100-150 303 primers that would be somewhere between my age and maca 49s age old if you are game. They still go bang, grandson used a few on the railway line.

2 years? Yr older than me?