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I posted this on one of the other forums I frequent, I figured I'd post it here also to show you what could happen if you get a "backyard gunsmith" to do your work. The point of this thread is not to run someones name through the mud, It is to simply point out that there are some butchers out there and you have to be careful about what you have done by whom! This picture is the barrel off my first wildcat I had built. The Gunsmith (I won't mention any names) decided he could undercut a standard thread on the barrel and friction fit it to a metric receiver! The threads were also Teflon taped when we pulled it apart. This barrel did not tighten up in the receiver until the last thread and half. Thankfully it did not come apart before it was discovered. The only reason I discovered this was that the gunsmith did not clean the burrs off the receiver correctly and the brass was getting marked really bad when extracting it. I wanted this fixed, so I took it to another reputable gunsmith who discovered it! I was shocked! The rifle did shoot ok, so this was a great surprise! An expensive lesson that could have been a lot worse. If the guy would have been straight up with me and told me he made a mistake or couldn't cut a metric thread I'd of been ok with it. But trying to hide it, that's just dangerous! Be sure of who's working on your rifle. ______________________ Did I mention I love Sako's | ||
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Just because he knew where the switch was to turn the lathe on sure as hell didn't mean that he knew how to operate it! Doug Humbarger NRA Life member Tonkin Gulf Yacht Club 72'73. Yankee Station Try to look unimportant. Your enemy might be low on ammo. | |||
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I never heard of trying teflon tape before on a barrel.You learn stuff all the time here.Good Luck | |||
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Everyone knows that you use JB Weld when you cut the shank threads undersized. Frank "I don't know what there is about buffalo that frightens me so.....He looks like he hates you personally. He looks like you owe him money." - Robert Ruark, Horn of the Hunter, 1953 NRA Life, SAF Life, CRPA Life, DRSS lite | |||
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It's looks like the fellow didn't know exactly which mark he was suppose to engage the half nut. Makes for killer multi-entry threads though. _______________________________________________________________________________ This is my rifle, there are many like it but this one is mine. My rifle is my best friend, it is my life. | |||
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That's just it Westpac, you can't use the threading dial with metric threads on a an inch machine. Once the half nuts are engaged they have to stay engaged through the entire threading process. Metric threads on a manual inch machine are a royal PITA! Start spindle, set dials, engage half nuts. At the end of the cut, pull the tool, kill the spindle. Reverse the feed direction, start the spindle, drive back to start, kill the spindle, reverse the feed direction, reset the dials, start the spindle. (Machine will start to feed instantly.) Repeat for as many passes as it takes to create the metric threads. When job is done, then disengage the half nuts. Can be very nerve racking. Rusty's Action Works Montross VA. Action work for Cowboy Shooters & Manufacturer of Stylized Rigby rifle sights. http://i61.photobucket.com/alb.../th_isofrontleft.jpg | |||
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And the chuck jaw marks on the muzzle are very nice touch too. I like how they touch in the front on one set and in the back on the other set. Very stylish. Looks like amature hour in the shool shop class. Rusty's Action Works Montross VA. Action work for Cowboy Shooters & Manufacturer of Stylized Rigby rifle sights. http://i61.photobucket.com/alb.../th_isofrontleft.jpg | |||
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They don't call it gun plumbing for nothing. Probably would have made out better as a plumber. ______________________ Did I mention I love Sako's | |||
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I don't mind doing metric threads. I charge a bit more for it, but I don't mind. Left hand Metric threads are a hell of a lot easier! _______________________________________________________________________________ This is my rifle, there are many like it but this one is mine. My rifle is my best friend, it is my life. | |||
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I assumed the teflon tape was for an Alaskan gun to help keep moisture out of the action Mike Legistine actu quod scripsi? Never under estimate the internet community's ability to reply to your post with their personal rant about their tangentially related, single occurrence issue. What I have learned on AR, since 2001: 1. The proper answer to: Where is the best place in town to get a steak dinner? is…You should go to Mel's Diner and get the fried chicken. 2. Big game animals can tell the difference between .015 of an inch in diameter, 15 grains of bullet weight, and 150 fps. 3. There is a difference in the performance of two identical projectiles launched at the same velocity if they came from different cartridges. 4. While a double rifle is the perfect DGR, every 375HH bolt gun needs to be modified to carry at least 5 down. 5. While a floor plate and detachable box magazine both use a mechanical latch, only the floor plate latch is reliable. Disregard the fact that every modern military rifle uses a detachable box magazine. 6. The Remington 700 is unreliable regardless of the fact it is the basis of the USMC M40 sniper rifle for 40+ years with no changes to the receiver or extractor and is the choice of more military and law enforcement sniper units than any other rifle. 7. PF actions are not suitable for a DGR and it is irrelevant that the M1, M14, M16, & AK47 which were designed for hunting men that can shoot back are all PF actions. 8. 95 deg F in Africa is different than 95 deg F in TX or CA and that is why you must worry about ammunition temperature in Africa (even though most safaris take place in winter) but not in TX or in CA. 9. The size of a ding in a gun's finish doesn't matter, what matters is whether it’s a safe ding or not. 10. 1 in a row is a trend, 2 in a row is statistically significant, and 3 in a row is an irrefutable fact. 11. Never buy a WSM or RCM cartridge for a safari rifle or your go to rifle in the USA because if they lose your ammo you can't find replacement ammo but don't worry 280 Rem, 338-06, 35 Whelen, and all Weatherby cartridges abound in Africa and back country stores. 12. A well hit animal can run 75 yds. in the open and suddenly drop with no initial blood trail, but the one I shot from 200 yds. away that ran 10 yds. and disappeared into a thicket and was not found was lost because the bullet penciled thru. I am 100% certain of this even though I have no physical evidence. 13. A 300 Win Mag is a 500 yard elk cartridge but a 308 Win is not a 300 yard elk cartridge even though the same bullet is travelling at the same velocity at those respective distances. | |||
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Don't know if you are kidding or not, but right hand metric is easy if you thread with the lathe in reverse and use an internal threading tool on the back side and thread toward the tailstock running in reverse. you don't need to worry about backing the tool out of the cut at the end. Jim Kobe 10841 Oxborough Ave So Bloomington MN 55437 952.884.6031 Professional member American Custom Gunmakers Guild | |||
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This guy didn't have a clue how to cut metric threads. ______________________ Did I mention I love Sako's | |||
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I'll bet I can tell you what his answer will be if you question him on it. "I've been installing barrels for years and I've never had anyone complain before. The thread is there only to hold the barrel in the action and it doesn't have to look pretty." I'd be ashamed to show that barrel to my wife and she knows nothing about guns. Ray Arizona Mountains | |||
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I do almost all my threading towards the tailstock by mounting my threading tool upside down. That's how I was trained 35 years ago and haven't seen a reason to change. John Farner If you haven't, please join the NRA! | |||
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Aw hell...cutting threads towards the headstock keeps your reflexes tuned! | |||
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And it's good exercise for the sphincter muscles. Ray Arizona Mountains | |||
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I am not defending the "Gunsmith" in this case but am reminding everyone that mistakes are made. As was mentioned earlier, owning up to mistakes is the mark of the professional. I have made mistakes that cost me dearly but since they were my mistakes, I paid for them and admitted them; this is why I have loyal customers and there are not pictures of my mistakes all over the web (thank the powers that be. It would be nice if there was a surefire way to seperate the good from the bad, it would make a lot more work for those of us that try to do quality work. I sincerely appreciate those customers that valued my honesty and did not hold my errors and mistakes against me! | |||
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And that's why I thread upside-down and away John Farner If you haven't, please join the NRA! | |||
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I have to change the lead screw gears to cut metric in my lathe. It's more of a pain than cutting the thread. I cut toward the headstock. Dave | |||
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Isn't it nice that 98 threads are so close to 12 TPI? I always hated cutting metrics, it usually took an hour of setup and then, cutting to a shoulder was always scary. "I ask, sir, what is the Militia? It is the whole people. To disarm the people is the best and most effective way to enslave them" - George Mason, co-author of the Second Amendment during the Virginia convention to ratify the Constitution | |||
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It's even closer, as in like "dead on", when you use the correct 55 degree tool for the Whitworth thread form. _______________________________________________________________________________ This is my rifle, there are many like it but this one is mine. My rifle is my best friend, it is my life. | |||
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Rusty why kill the spindle? Live on the wild side once & a while! See just how quick your reflexes really are! Doug Humbarger NRA Life member Tonkin Gulf Yacht Club 72'73. Yankee Station Try to look unimportant. Your enemy might be low on ammo. | |||
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and do you also swing the compound rest 29 degrees to the left? Doug Humbarger NRA Life member Tonkin Gulf Yacht Club 72'73. Yankee Station Try to look unimportant. Your enemy might be low on ammo. | |||
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Because I can't reverse the feed if the gearbox is spinning and as the gear box is driven off the spindle..... The foot brake has saved me a couple of times while learning metric threading. While I can do it, I don't like it. Rusty's Action Works Montross VA. Action work for Cowboy Shooters & Manufacturer of Stylized Rigby rifle sights. http://i61.photobucket.com/alb.../th_isofrontleft.jpg | |||
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Understood. I am belt driven so i don't have that issue. When I get to the end of the cut I back out & reverse. I have a jet 12x36 Doug Humbarger NRA Life member Tonkin Gulf Yacht Club 72'73. Yankee Station Try to look unimportant. Your enemy might be low on ammo. | |||
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Teflon tape. Now I can throw away all my abc chewing gum ! ...tj3006 freedom1st | |||
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