A new to me .300 Wby Mag has slim muzzle brake installed and trigger job -- some sort of after market. The rifle was only used for hunting (f-i-l did some load development for friend of his, the former owner.) While cleaning it up, I couldn't get the bolt out using the usual method, which works fine on the wife's .270 Wby Mag also a Mark V. Anyhow, I have had to clean from the muzzle braked end -- even taking it out of the stock yielded no answer as to how to clean from the breech with my usual routine. No matter how I manipulate the trigger, the bolt will not release. I don't plan to do much with the gun, but am curious about any learning opportunities you'd care to share.

Thanks!

Barry

A picture might help. Have you tried pushing the trigger forward?

Yes. What's happening is inside where pics can't happen.

Muzzle brake



Trigger safety off


Trigger safety on


Trigger off side

Looks like the holes are machined the wrong direction on that brake.

Gunked up bolt release channel ++

speerchucker at AR is da bomb! (Sure do miss malm, but now I can tell on myself to his replacement when I do something iffy.)

Cleaned everything up with Gunblaster and plastic brush, then Remoil after air blaster to dry, but don't tell speerchucker!

Works fine and I can't get it off anyhow.

That looks like a German made mkv. Did cleaning everything work? If not remove the trigger from the action and test the bolt release lever. They sometimes need some bending and tweaking to engage properly. Also sometimes tightening the front stop screw to much applies weird pressure and the housing and causes binding.

Everything works now. Front sling swivel stud protruded too far into barrel channel (to my eye) so I shortened it some while I was at it. Weatherby used a machine screw and embedded nut???

Thats an ancient factory MkV trigger from before they put the safety on the bolt shroud. You may have enough slop in the linkage on the left side that it isn't fully dropping the bolt stop. Try to pull the trigger and then get ahold of the bolt stop pin with needle nose or something and try to gently pull it the rest of the way down to clear the bolt. Be gentle because if something breaks on that pot metal trigger Weatherby will charge an arm and a leg to retrofit it with the new style shroud and trigger, I'm speaking from experience in that area.

That's what speerchucker at AR said. Good call, and all is now well.

speerchucker is a fount of knowledge!