Author Topic: Barrel Retining Pins  (Read 4061 times)

Offline frogwalking

  • Hero Member
  • *****
  • Posts: 1044
Barrel Retining Pins
« on: April 14, 2014, 04:32:45 PM »
I guess the heading should have been barrel pin retaining holes.  I have had an issue of he pins breaking out a small divot of wood as they are removed.   This is usually an issue during construction.  I am sure there is a trick to preventing this.  Please tell me what the trick is, and in  gratitude, I may use pins instead of wedges on my new Tennessee rifle.
Quality, schedule, price; Pick any two.

Offline flehto

  • Hero Member
  • *****
  • Posts: 3335
Re: Barrel Retining Pins
« Reply #1 on: April 14, 2014, 04:39:40 PM »
I use 1/16 dia music wire for all the pins because not only is the dia uniform but the mat'l is semi -hard and very stiff.  A 1/16 dia drill is used for the hole and the "fit" isn't all that tight. ...can easily be removed , nearly w/ the fingers. Also both ends have a chamfer to eliminate "popping" the wood when inserteing or removing.

After applying finish. a 1/16 drill held in a hand vise resizes the holes. .....Fred
« Last Edit: April 14, 2014, 04:45:04 PM by flehto »

Offline Acer Saccharum

  • Hero Member
  • *****
  • Posts: 19311
    • Thomas  A Curran
Re: Barrel Retining Pins
« Reply #2 on: April 14, 2014, 04:41:54 PM »
Round the ends of the pins, and they won't catch on the stock as they are driven out.

If the pins are short, the holes can shrink shut a little, chipping wood as they come out. So make your pins flush with the surface, and round the ends. You can also bellmouth the holes slightly with a tapered punch, so nothing catches as you drive the pins out.
Tom Curran's web site : http://monstermachineshop.net
Ramrod scrapers are all sold out.

Offline David Rase

  • Hero Member
  • *****
  • Posts: 4320
  • If we need it here, make it here. Charlie Daniels
Re: Barrel Retining Pins
« Reply #3 on: April 14, 2014, 05:05:27 PM »
Place your cut off pins in your electric hand drill and round the ends off with a file as tom suggests.  I have had no break out problems using this method.  I like the idea of using a tapered punch to "slightly" bellmouth the hole.
David

Offline Dennis Glazener

  • Administrator
  • Hero Member
  • *
  • Posts: 19487
    • GillespieRifles
Re: Barrel Retining Pins
« Reply #4 on: April 14, 2014, 06:37:57 PM »
I do my pins as Tom suggests and another thing you might consider is making the pins a little shorter than the wood then rub beeswax into the hole. Hides those shinny pins and helps keep moisture out.
Dennis
« Last Edit: April 14, 2014, 06:39:00 PM by Dennis Glazener »
"I never considered a difference of opinion in politics, in religion, in philosophy, as cause for withdrawing from a friend" - Thomas Jefferson

Offline D. Taylor Sapergia

  • Member 3
  • Hero Member
  • *
  • Posts: 12671
Re: Barrel Retining Pins
« Reply #5 on: April 14, 2014, 06:56:14 PM »
My approach is similar, but I don't round them off totally.  I simply grind a chamfer on the ends of the pins so that they'll find the hole without chipping oout, but leave a flat spot on the end of the pins.  I remove the pins frequently, as I remove the barrel for cleaning, so I need something that the pin punch is not going to slip off.  On pins that have an escutcheon, I drill a tiny divot into the end of the pin so a pointed vent pick can be used to push out the pin.  I make them short of the surface, and rub the holes over with bees wax.
D. Taylor Sapergia
www.sapergia.blogspot.com

Art is not an object.  It is the excitement inspired by the object.

Offline mountainman70

  • Hero Member
  • *****
  • Posts: 2465
  • USAF vet 1971-1972 malmstrom afb,montana
Re: Barrel Retining Pins
« Reply #6 on: April 15, 2014, 05:08:27 AM »
For building chores,I like the long pins bent at 90 degrees so they can be easily pulled out,seed this little trick on one of Acers build pics.made a couple sets for myself.I do the final pins like most here,or some variation.Dave ;)

Offline gwill

  • Full Member
  • ***
  • Posts: 131
Re: Barrel Retining Pins
« Reply #7 on: April 15, 2014, 01:06:25 PM »
I've had good luck filing a chamfer on the ends as has been stated by several others.  I also rub a little wax on the pins before putting them in each time and it seems to help installation and removal much like waxing a wood screw does.

ken

  • Guest
Re: Barrel Retining Pins
« Reply #8 on: April 15, 2014, 02:39:45 PM »
I always leave the pins long during the build and camfer the ends . Use to make them too tight and fond that not a good thing. They always tighten up with finishing ken

Offline frogwalking

  • Hero Member
  • *****
  • Posts: 1044
Re: Barrel Retining Pins
« Reply #9 on: April 16, 2014, 12:57:54 AM »
 Thanks for the  advise.  I appreciate it.
Quality, schedule, price; Pick any two.