Thanks for all the input STILL waiting for OP to tell us what he discovered - as the cause ???? When one reads from the beginning one can read that the OP is quite sure that he is NOT loading anywhere near .. pressure levels Loading for 33 years

Far right was in solution, to left middle got wet, far left did not touch solution.[urlby [urlallen[/url], on Flickr

 

Headspace issues still do not stretch primer pockets, cause heavy bolt lift, enlarge case heads and cratered primers.

By my experience, the loads are over pressure. The loads are borderline too hot, and the odd one is showing it by spitting the used primer. It'll occur more frequently as you re-use that brass, because the primer pockets will have stretched after a couple of firings, and it'll get to the point wher...

Starting on a rusty 7x57 barrel tonight, will see how it goes. I have cleaned the barrel mechanically previously, will see what this potion delivers.  

**************************************Why would chamber change from shooting to problems, what could change ?  

No idea. I made a lot (>20l) to treat kombi body and suspension parts and used it it big plastic bags so keeping it wasn't on the cards for me. At a guess I'd imagine that it would last pretty well if kept in a sealed container. It's cheaper than dirt to make if you buy the citric acid and washin...

A lot on this pistol if you Google it. Used in assassination that caused WW1.

Hi, another thing to check is if the chamber is dirty and needs to be cleaned/ polished. I had it recently on the 308 while on course. Probably a bit of dirt got in on a previous range session and the the on course the bolt stuck on the first shot with factory ammo. No signs of pressure on the case....

It works at least as well as evaporust for a tiny fraction of the cost and seems to keep working for longer. For the ease of sourcing the ingredients, their cost and its efficacy I imagine it would be very difficult to beat **************************************I am making some tonight, what is it...

  It works at least as well as evaporust for a tiny fraction of the cost and seems to keep working for longer. For the ease of sourcing the ingredients, their cost and its efficacy I imagine it would be very difficult to beat