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Here is the deal concerning barrel set backs in our shop. First after enough barrel shank is removed to insure that a proper chambering job can be done there has to be enough straight section left to get a hold of. In your case depending on how crooked the chamber is will effect how much you...

Ray it’s like this… If the bolt nose contacts the breach face and the case length from the head to datum is not exactly perfect then the cartridge floats in the chamber until it is hit by the firing pin. The firing pin drives the case forward until it hits the shoulder datum then it fires…...

You are darn straight Russ and Marsha are super great folks! I also try to send business their way whenever I can. They still do the burger feed along with the matches at TR&R? Nic.

What kind of stand or cabinet is your lathe bolted to? Many of the cabinets and stands that came with those types of lathes are way too flexible to hold any long term accuracy. I’m not saying that you can’t do accurate work on them it’s just harder and takes longer. You could saw cut and dig...

Absolutely you do not want the bolt nose to touch the counter bore this can cause accuracy and functioning problems. You need some clearance but not too much. The closer the fit the slower the gas will escape if you have a case failure, the larger the clearance the faster the gas will escape...

Rethink how you are measuring. Your set-up sounds a little iffy to me. Try another lash up, Nic.

JKob you are the man!!! Your way is so much easier than the way I’ve been doing it that I will no longer do it my way any more!!! Pick up the hole with a conical center finder, drill and tap. Move to the next hole and repeat. Tap the sight base with a small brass hammer to remove it, clean up...

Here is when cutting threads without a thread relief pays off big time. You can set back a barrel less than the full shank length and not have that big ass grove in the threads when you are done. I suggest that, if you are comfortable picking up the rest of the old thread you shorten the...

I'm not sure how I would use the reamer during all this to set the taper on the compound. Put the reamer pilot into the bore with the reamer held in the tailstock just like you would hold it for reaming and a .0001 dial indicator in your tool post. Then indicate in a reamer flute, be careful...

Caution Math Content!! 1. If you still need some help this is a way you can do it. Go here http://www.saami.org/PubResources/CC...0-%20Rifle.pdf and look up your cartridge. Find the diameters at the shoulder and at the rear datum line, usually .200 ahead of the bolt face. Now notice the...

Nothing to it, unless you want to use the full length of the straight breech end of your barrel it’s all quite simple, really. Buy the reamer, chuck up your barrel blank, dial it in, and cut the chamber as you would normally do except plan to stop at just past the shoulder. This will give you...

There you go Al it’s a perspective thing. If a $4000 dollar fix is a cheap education, salute! But people get very attached to their projects after waiting months on reamers, actions, barrels, stocks and such. These items start to have some unreal ability to put pressure on people and the...

All of this is very easy! Each individual task is easy; the problem lies in that that are a thousand of them that have to be done correctly to complete the job. 42 years ago as a freshman in high school in basic metal shop to pass the lathe section you had to turn a shaft and cut an external...

Greetings, sorry for the delay in reporting back on IMR 8208 XBR powder in the 30X47 HBR chambering. I had a bit of an accident at work and crushed my left hand, almost completely severed my left index finger. A few surgeries, a ton of PT and a little better than a year later you can hardly...

Floating reamer holders that work Greetings, There a couple of floating reamer holders out there that don’t settle to the bottom but they are not cheap, around $500 plus the cost of the mounting arbor. These are of the industrial and automotive style with multiple floating elements and guides...

Greetings, You want to be feeding the boring bar toward the head stock, the lead angle and rake of the tool is set up for using it in that manner. Look at the cutting insert, or how the solid boring bar is ground and you will see the logic. The boring bar will be much stiffer under...

Thanks for the input all, I've been using V135, when the weather straightens up I'll give XBR a try and report the findings. Where I live, this time of year it's either raining like a cow whizzing on a flat rock or the wind is blowing like a politician trying to get re-elected. When the...

Greetings, Dump the nut, fit the barrel with a shoulder and use a good quality thicker recoil lug. This is the way it is done in our shop and we have never had a customer come back to ask that the shoulder be removed and a “nut job” performed on his barrel. Nic.

Greetings, Anyone have any experience with IMR 8208 XBR in any of the 30X47 HBR variants that they would like to talk about? Research shows that the initial “trial and test” lots were faster than the “production” lots resulting in a powder that is a bit slow for the PPC and .30 BR. I have...

Greetings, Watch for a sale at MSC / J&L and gather up yourself a YUSA Super Spacer. It will come with several masking plates, a very, very good chuck and extremely good accuracy. You can make all of the rest of the stuff you need to index and cut the barrel. Nic.