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sleek:
 Have you tried one with a pilot? It's a little nub that's .002 ish smaller than the hole, and guides the cutter straight with the hole, stopping chatter. You could also drop your rpm and increase your downward pressure. That usually helps as well.

Eric Krewson:
I have some of the ones you mention but they are short. On drilling a tang hole you have to drill a long hole to the trigger plate and countersink at exactly the same angle you went through the tang with your drill bit. I have a problem taking a long bit out and putting the short one in my drill press and not having my gun shift position. I can't clamp it in the drill press vise and drill ar the right angle, the stock gets in the way.

sleek:
There are counter sinks out there that slide onto the shank of the drill bit and are set with a set screw. Everytime you drill to a certain depth, you countersink the exact same depth and angle of the drill bit every time.

I know it's a small thing, it gets covered up anyway, but just offering ideas on how to make that easier for you.

Parnell:
I'm watching, Eric.  I've just begun to pull out my next project now that the humidity will begin to lessen down here.  A Lancaster rifle in fancy maple, so similar to this project, I suppose?. I've ordered the plans from Track...should be here soon.  It's a swamped Colerain A wt. .45 42" barrel.  I've just begun to start cleaning it up.  I'll post up soon.

Eric Krewson:
I was able to jocky the short pilot hole countersink into the tang hole and it cut a perfect countersink, no chatter.

Today's project was to teach a guy about bows and bow making, he was a no show so I worked on my gun.

I installed the barrel underlugs, drilled and pinned the stock the barrel, it went well. This is a measure 5 times and drill once kinda thing.

This was a kit gun and the previous owner had Track cut the dovetails for the underlugs. The dovetails were cut a little crooked but the underlugs supplied with the kit tapped right in with no filing.



Making the lines to line up with once I get the barrel in the stock. I have the top of barrel clamped to a straight piece of aluminum and will lower my bit and adjust the aluminum stop to where the bit hits perfectly on the lug.




I have the barrel c clamped in the stock with tang bolt tightened. I have lined up all my lines and are ready to drill the stock and underlug together.



Success, all three lugs in and pinned, I do them one at a time and pull the barrel to make sure I hit each one just right before I go to the next one. I have to make a different measurement and reclamp for each lug. The barrel is swamped and they are all in a little different position.





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