N
Butch:
Sombody sent me a picture of two Afgan gunsmiths. One had a hammer and the other a file. Seems to me they had a number of AK47s in a pile.
Nat
Below was taken from one of your previous post
"I built Kyle Leibertrau's rifle that he won the 2007 World Palma Championships with. (Junior individual and team events) I built this on a Nesika K action in 2004/5. I built Charles Clark's Palma gun that he took to Worlds back in 03, also on a Nesika action (model J). Both guns will hold a 1/3rd of a minute for elevation back at 1K. So I will concede that there may be merit to what your saying. But I temper that with the memory of a beat up Remington 700 owned by retired Sgt. Major Norm Crawford who was also on the 03 Palma Team. His "sow's ear" is every bit as capable as the rifles I built and to the best of my knowledge it does not have any sort of modification to minimize the bolt to receiver tolerance. Then there's Mr. Corbin Shell who won a Tennessee 1000 yard state level match a few years back with a Mauser that Hitler probably carried".
I can not comment about Charles Clark's gun...
As for Sgt Major Norm Crawford, I was under the opinion Mark Hunt of Walburg, NC smithed his rifles. That is what is indicated on Dan Lilja's web site. I have personally seen Mark and/or his son picking up rifles from Norm while at Butner.
As for Corbin Shell's Mauser, it was a Witworth Mauser he put together while he attended Montgomery Community College Gunsmithing school. It was chambered in 6.5 X .284 with a Mark Chanlynn Barrel. Corbin brought that rifle (mauser) and a Model J Nesika chambered in 6.5 Remington magnum to me for rebarreling. He told me he got the Nesika from Glenn Harrison and Richard Spurlin (sp) at Nesika in SD. I know he had two bolts for that action. I think he also had a 6.5 X .284 barrel for the Nesika. I rechambered it in 6.5 Remington magnum and he shot it at Camp Perry in August 2005. I saw that same Nesika in a Birds eye maple stock on 6mmBR website last year. Corbin claimed to have done the stock work. I know about two years ago John Whidden rechambered it in .243Win.
Get your stories straight as the gunsmithing world is a small one almost everyone knows everyone.
Nat Lambeth
Dennis, I like the bolt bumps.
One thing I do in remmy actions after truing the reciever,
I place a strip of painters tape in the bottom of the rear reciver ring when lapping the bolt lugs. This forces the rear of the bolt up thus lapping a little more off the bottom lug. So when the pin is cocked the lugs are making equal contact.
When you fire as such, the sear spring is still pushing up on the sear arm that the fireing pin ramp is riding over. So in theory when lapped this way the bolt is held up pre firing, forced up upon firing/chamber pressure, and held up by sear spring pressure after firing. thus eliminating the "downward slam"
I know now the bolt face is not perfectly square with the centerline of the rifles bore. Well the mathmatical calc. of that triangle comes out to
about .0001" out. Most peoples dies tweak the brass more than that.
I figure with the wear of about 500 bolt closings on the trued action your outcome is exactly as what I am lapping in from the start.
As Chad had mentioned about doing the math, figuring out what the lug gap is on a bushed bolt versus a non bushed bolt. I chose to lap the difference out of the lugs on a rifle. It's my KISS, and it cost no more than just the action trueing, with that said if a fellow wants it bushed by all means I'll oblige.
Somthing else for tolerance filler Cerakoat and Duracoat.
Coating the remmy action and bolt can take up to .002-.004" of slop. It usually holds up as long as most guys barrels last.
This is a very easy to do and solid, clean method of bumping a bolt.
I "bump" the occasional 700 bolt. When I am truing the action (as I described above) and have a tight bushing in the rear of the action, I take a diameter measurement from the bushing.
I machine two standard 3/8's inch dovetails in the bolt body right where they would contact the rear bridge on the receiver when the bolt is closed. Then those dovetails are fitted with steel dovetail blanks and they are machined to the diameter measurement I got from the bushing.
The bolt operates freely with the "bump" not coming into play until the bolt is closed... and when you close it all rear up and down movement is eliminated.
I can not take credit for this idea, I first heard about this method from Bill Leeper who frequents this and other "gun" sites occasionally.
Here is a picture of the bottom "bump" on a 700.
Below was taken from one of your previous post
"I built Kyle Leibertrau's rifle that he won the 2007 World Palma Championships with. (Junior individual and team events) I built this on a Nesika K action in 2004/5. I built Charles Clark's Palma gun that he took to Worlds back in 03, also on a Nesika action (model J). Both guns will hold a 1/3rd of a minute for elevation back at 1K. So I will concede that there may be merit to what your saying. But I temper that with the memory of a beat up Remington 700 owned by retired Sgt. Major Norm Crawford who was also on the 03 Palma Team. His "sow's ear" is every bit as capable as the rifles I built and to the best of my knowledge it does not have any sort of modification to minimize the bolt to receiver tolerance. Then there's Mr. Corbin Shell who won a Tennessee 1000 yard state level match a few years back with a Mauser that Hitler probably carried".
I can not comment about Charles Clark's gun...
As for Sgt Major Norm Crawford, I was under the opinion Mark Hunt of Walburg, NC smithed his rifles. That is what is indicated on Dan Lilja's web site. I have personally seen Mark and/or his son picking up rifles from Norm while at Butner.
As for Corbin Shell's Mauser, it was a Witworth Mauser he put together while he attended Montgomery Community College Gunsmithing school. It was chambered in 6.5 X .284 with a Mark Chanlynn Barrel. Corbin brought that rifle (mauser) and a Model J Nesika chambered in 6.5 Remington magnum to me for rebarreling. He told me he got the Nesika from Glenn Harrison and Richard Spurlin (sp) at Nesika in SD. I know he had two bolts for that action. I think he also had a 6.5 X .284 barrel for the Nesika. I rechambered it in 6.5 Remington magnum and he shot it at Camp Perry in August 2005. I saw that same Nesika in a Birds eye maple stock on 6mmBR website last year. Corbin claimed to have done the stock work. I know about two years ago John Whidden rechambered it in .243Win.
Get your stories straight as the gunsmithing world is a small one almost everyone knows everyone.
Nat Lambeth