after the prpoper headspacing I need to re drill the barrel pin hole and find a new pin.

Where can I find a bigger pin and what should it me made from?

What size did you drill the new hole?I can turn a pin ..Pat

Buy an inexpensive drill bit and cut the threaded portion off with a cut off wheel. Bevel the ends a little on a disc snader of bench grinder.

Press in and done.



efxguy

Quoted: Buy an inexpensive drill bit and cut the threaded portion off with a cut off wheel. Bevel the ends a little on a disc snader of bench grinder. Press in and done. efxguy

Know a guy that's done this with good results, can't think of the word but he also said he put some dents (for lack of a better word) in it to make sure it was a little bigger for a nice tight fit.

Browell sells a reamer and pin for this job but can't remember the parts.

I would also check with 32ndsigbn sense he will make you one, and also trust him enough that he would make sure the steel was hardened enough.

Using a like sized drill bit for a barrel pin may sound like a easy fix for a oversize pin. But you need an  interference fit so a 100% bearing between pin and trunnion and barrel is accomplished . Just upsetting the pin to get a tight feeling fit will soon loosen up and the barrel will move  changing the headspace. What size drill was used?..Pat

I think you can use a letter "I" bit. You can stake it in on the ends, though the best way would be to drill with one size and press in a slightly larger drill bit. Or you could not drill completely through, leaving the last bit of the hole undersize so you would get a very tight fit on the last mm of the press in.

There is a whole lot of bearing surface on the barrel in the pin hole, 7mm is about a 1/4". I would think that you would need a much smaller pin than the hole in order to be able to change the headspace by shooting it...


efxguy

Quoted: Using a like sized drill bit for a barrel pin may sound like a easy fix for a oversize pin. But you need an  interference fit so a 100% bearing between pin and trunnion and barrel is accomplished . Just upsetting the pin to get a tight feeling fit will soon loosen up and the barrel will move  changing the headspace. What size drill was used?..Pat

What if you hit it with a tiny tack weld on either side?