View Full Version : Quick change bbls?
August 13, 2006, 02:37 PM
Been sitting on porch reading a Mauser book - there is one there (German) that looks like the Savage in regard to bbl. mounting - there is a sleeve which tightens back against action face.
I'd like to thread I.D. for a Savage type collar - screw the bbl. back against the inner ring (of course after proper headspacing) and have a rifle with quick change bbls!
What do you guys think?
P.S. Could I also make a "take-down" 98 Mauser ;like this?
August 13, 2006, 06:30 PM
You can use the system Savage uses that relies on setting up the barrel each time it is installed, or use the method the benchrest smiths use of high accuracy and square shoulders.
I have a Panda from Kelbly's that can be switched at will.
Hell, I can call up and get a new barrel chambered and mailed to me, screw it on the action, and be assured the headspace will be correct. The actin remains in my safe until the new barrel arrives.
August 14, 2006, 11:32 AM
I've seen a few take-down Mausers, and all except one used the interrupted thread for take-down/re-assembly. That would require modifying the action. The other had a keyed barrel mating system, very slick, but very custom.
If you are partial to take-downs, look at the Sig rifles. Very slick, and the bolt locks into the barrel extension. The action just hold the barrel and guides the bolt, does not provide any structural support.
August 17, 2006, 05:45 PM
Have kind of (?) given up the idea for now. Various reasons - such as WHY?
August 19, 2006, 10:33 AM
Depends, do you want a take down rifle or just the ability to change a barrel with little fuss?
I have a couple of barrels for my varmint rifle and typically start with teh .22-250AI unti the closer targets are out of reach, then switch to a 6mm Rem AI for reching out past 300 yards.
Since it obly takes about 5 minutes to change barrels, the morning is often ,22 while the afternon is 6mm time.
By the afternoon hte breeze has often picked up enough that the heavier 6mm bullets perform better anyway.
The groundhogs seem to have been 'educated' by a lot of misses, and shots under 200 yards are getting pretty rare. Crawling through the fields is not an option anymore.
August 26, 2006, 09:34 AM
Why not just get an TC encore? a heck of a lot cheaper than modifying a perfectly good rifle or spending big bucks on a custom take down rifle. Just my 2 cents.
August 26, 2006, 01:55 PM
Various reasons - such as WHY?
That is weak Harry. With that line of reasoning, we would have 30/30's an 30/06 for rifle calibers and .45 for pistols.
Sometimes the best answer to the question of "why?", is "because I can."
I have an old Savage 1899 that has interuppted threads on the barrel. I like it for the compactness of the disassembled package. It would be terrific for backpacking, or throwing into a suitcase for out of town travel.
Discreet rifle carry. There is a Good reason.
August 26, 2006, 05:32 PM
I know, but all of us have little areas of insanity in us. Yea, I could do it but I'd probably never change a bbl! It would be a "discussion' piece".
Really, I'd rather spend my time finishing my flintlock 54 cal hawken full-stock , or, making stocks for the three VZ24's already barrel up.
(Somday I might build a "quick change Mauser)
August 26, 2006, 08:20 PM
I have the receiver and the two barrels and want to build a 6mm Remington as well as a .22-250. You inspired me with the idea when you brought the post up. I think I am going to give it a shot. Who knows, i may just like the idea when i get through with it.
I was going to pick me up a couple more receivers to build the rifles with, but I sort of like the idea of the quick change Mauser. I'll post the work when I get through with it.
August 26, 2006, 11:01 PM
“I'll post the work when I get through with it.”
Yes, please do. Some work in progress pictures
and/or even your ideas as you work would be nice.
You have my attention
August 27, 2006, 10:32 AM
If we are going to have quick change bbls on the Savage pattern the face of our recievers must be trued square on a mandrel in the lathe (which I always do) to give a prefect place to seat.
Actually, a bbl need not be screwed in very tight to be safe, and a 75% thread depth will hold 90% of what a 100% thread will! Hence the old ways of taking play out of worn threads in the old take-down Winchesters.
When you true the receiver face you will find that the inner shoulder is off from.003 to .007. I am working on a tool that will clean up the inner shoulder so that the bbl. can be set up on both shoulders carrectly. This is caused not by bad machining but from the warpage during caburizing the action ring!
I shun manuals by people who give "god-like" answers to all Mauser actions. NO ONE knows the total specs' on all Mauser actions - they are lost forever in WWII. Oh! How I'd have liked to be a little mouse in the WWII Mauser plants!!!
I just might build one now! ( a quick change):confused:
Doc and I are going to build 9.3X64.s rifles this Thanksgiving!
August 27, 2006, 08:55 PM
Harry, I have a tool that I thread into the receiver thread and then use Al oxide lapping compound and some brass cut to fit the torque shoulder to lap the contour as even as I can get it. I use a 3/8 cordless drill to turn the shaft on it. When I am done with the shoulder, you get a lipstick ring all the way around the shoulder.
I will be using the "Savage type" shoulderless barrel tenon and a barrel nut to put this together. Shouldn't be too hard to put together a combo that you can remove the barrel with a barrel nut wrench and I hope to be able to do it without the use of a vise. Wish me luck. If I mess up, all I will be out is the chamber length of the barrel. The ones I have are both 26" so even if I have to cut off the chamber I will have enough to still use for a decent barrel.
The hardest part will be cutting the barrel nut wrench and even that shouldn't be too hard to work out. I am thinking about using a spanner type wrench instead of actually cutting all of the slots all the way around the nut, anyone have any thoughts on this. The spanner type nut will surely be the easiest to make.
August 28, 2006, 06:57 AM
Yea! I was going to use the spanner idea. I might still tackle it - Doc, from Mayo in Fla. is comming up Thanksgiving and were both building 9.3X64s.
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