Back in the early to mid 80's when those Swedish Mauser M38s were readily available and all the go, I bought one with the after market stocks and Hilver mounts package deals, I was using 4064 powder, when I ran out I tried to buy a tin in Taree when passing through on the way hunting in QLD, old mate didn't have any in the gun shop, but dragged out a tin of 3031 and told me that "its just the same but a different number, use the same weight charge".
![Shocked :shock:](./images/smilies/icon_eek.gif)
I didn't use it, and I have often wondered if anyone else struck this fella and blew their rifle up.