Gents, I just got in a defiance action barreled with a proof carbon fiber in 28 nosler. Went to drop it into the manners eh1a mini chassis and when I tighten it down the front screw impedes the bold and will not let me close the bolt. Is this common, do I need to trim the manners screw or send it in? Any help?
Gunsmithing HELP! Defiance action won’t close in manners stock
- Thread starter Atlas11B
- Start date
Fitting a guard screw is 101 GS stuff. Its a very, very, very common practice. This might help:
1/4-28 screw. 1/4" in diameter and 28 threads per inch. Easy enough. This is the most common one used by action makers and gun companies here in The States. Divide 1 by 28 and you get .0357". That will become relevant here in a second.
So, drop the bolt in your action. Put the front screw in first. Tighten it down. Now insert the bolt and GENTLY attempt to close. If the bolt hangs up, stick the appropriate tool in the guard screw and note its clock position. Now start backing out the screw while holding the action in the stock. At some point the bolt handle falls. When it does, note how many rotations your tool made when backing it out.
Multiply the rotation by the pitch (.0357") and add one half rev for clearance. That is how much you remove from your screw. Reset, cycle start and do the same on the rear. Tang screws with blind holes are a bit more work. Basically I just chip away at those till they work.
Good luck..
1/4-28 screw. 1/4" in diameter and 28 threads per inch. Easy enough. This is the most common one used by action makers and gun companies here in The States. Divide 1 by 28 and you get .0357". That will become relevant here in a second.
So, drop the bolt in your action. Put the front screw in first. Tighten it down. Now insert the bolt and GENTLY attempt to close. If the bolt hangs up, stick the appropriate tool in the guard screw and note its clock position. Now start backing out the screw while holding the action in the stock. At some point the bolt handle falls. When it does, note how many rotations your tool made when backing it out.
Multiply the rotation by the pitch (.0357") and add one half rev for clearance. That is how much you remove from your screw. Reset, cycle start and do the same on the rear. Tang screws with blind holes are a bit more work. Basically I just chip away at those till they work.
Good luck..
Screw would sit flush in the cocking piece track MINUS 1/2 of a pitch. That's how I do it anyway.
Got it all good to go using the method above. Now I’m seeing that my barrel is hugging the left side of the barrel channel. It seems to be floated but it is tight on the left, wide on the right.. now what am I running into? Barrel channel not straight, mini chassis not square?!
It's possible the barrel wasn't "timed" to 12:00 and favors more towards 9:00.
I've seen a stock or two that was a little less than square as well.
R
