jonk
08-03-2014, 05:18 PM
I've been shooting 2f out of it with no issue, 380 gr Lee bullet. Today I thought I'd try some 3f. And for some reason, I chose to try Swiss.
Starting at 25 gr, no issues. But when I got to 30 gr, something worrying happened. The action blew open. Not violently; just when I had finished my shot, I noticed that the breech was now already unlocked. Figuring I just hadn't shut the action tight, I tried it again, making sure this time- same deal. So I stopped shooting the 30 gr rounds.
Granted, Swiss is pretty energetic powder, but a 30 gr load isn't a real stiff one either.
Logically it would seem to me that under fire, the pressure in the chamber is all directed rearwards, which will only compress and tighten the lock, and that what's probably happening is the recoil is causing the unlocking lever to ride up, but I'd like your opinions before I say that's it.
Gun locks up tight with very very little wobble otherwise.
Starting at 25 gr, no issues. But when I got to 30 gr, something worrying happened. The action blew open. Not violently; just when I had finished my shot, I noticed that the breech was now already unlocked. Figuring I just hadn't shut the action tight, I tried it again, making sure this time- same deal. So I stopped shooting the 30 gr rounds.
Granted, Swiss is pretty energetic powder, but a 30 gr load isn't a real stiff one either.
Logically it would seem to me that under fire, the pressure in the chamber is all directed rearwards, which will only compress and tighten the lock, and that what's probably happening is the recoil is causing the unlocking lever to ride up, but I'd like your opinions before I say that's it.
Gun locks up tight with very very little wobble otherwise.