openclassterror
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Posts posted by openclassterror
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Ok, so I am not the most patient person in the world.
After I got the last customer outta my shop for the day, I set it up in my mill. 1/8 carbide ball end mill cut great! Started at about 2K rpm, dropped it to 700 as it started to break thru because it began to chatter. Looked Beautiful! Re-assembled with the comp, test fired into the bullet tube, still a little up-n-down. Opened up to 3/16. Used a ball end mill again, but had to drop all the way to 450 rpm to keep it from chattering. Still no burr though! Muzzle flip is just about non-existent now. So, now the next guy knows! Sharp carbide ( I used TiAln coated), low rpm, steady pressure. Make sure to keep the chips clear so the cutter doesn't rub.Tom
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Just wondering if anyone has done this. I have a 5.25 XDM, and I noticed when I threaded it for a comp that the material is really hard and gummy about .02 deep from the nitride. Nearly impossible to cut with HSS, used carbide. I am thinking that if I drill a popple hole, it will push a gnarly burr into the bore, and a reamer will not peel it out since the interior of the barrel is also nitride. Thinking about pecking the hole in with a 1/8 carbide end mill. Any thoughts from someone who has fought this?
Tom
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The warning about using foaming bore cleaner in gas guns is about the tendency for the foam to creep into the tube, loosen all the gunk up, and then reharden in a puddle which constricts the tube. I use the foaming stuff, but always use compressed air to blow the gunk back into the barrel from the carrier end forward, then patch it out. Never had a problem and gas tube stays as clean as using a pipe cleaner with less work.
Tom
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Agreed. Kinda wish there was a way to move this thread down to multigun shotguns. The 391 is better suited to dedicated clay bird shooting. BTW, Mr Kelley, it looks like the flared opening on your loading port is biased more to the support hand side. If that is what I am seeing, is that working well? most I have seen have been symmetrical.
Tom
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Build it!! You can put all the parts you desire in it the first time and save yourself some coin in the process!!!! I dont think i'll ever buy a complete rifle again!!!!
Well, it sounds like the OP already decided, but my $.02 is that even if you THINK every thing you desire is going onto a custom build, as your skills change, the things you think are perfect change too. My rifles evolve at a slow constant, as I experiment to figure out what works best for me at my current level. So my dream rifle right now will probably be 25% different parts 3 years from now. A package built rifle is probably fine for a beginner, but no 2 shooters will find that at their peak level that one rifle is perfect for both. I just get used to the fact that gear experiments are PART of 3gun.
Tom
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Hi all-
hate to resurrect an older thread, but have some fresh info to add. It appears that there was a running change in production on the mag-tube threads. The current m3000 threads are a metric thread with a different pitch than the Supernova. I bought a Nordic modular mag tube, and I ended up re cutting the threads in the removeable adapter nut to fit the stoeger. Luckily, it is slightly larger, so even with the recut threads there is plenty of metal for a good joint after re-threading. An easy enough lathe job for any competent gunsmith. I have been using it to compete in open class all summer with a 13 shot extension, which allows 15 total with the ghost load. ZERO malfunctions since the day I bought it. I am impressed so far. I am working with arredondo in an attempt to get a speed loader bracket that is not drilled for the cross pin so I can adapt it to this platform. It does not appear to be a drop in fit for any of the Benelli models. If I can proto a speedloader funnel that works for this shotgun I will probably make several. As far as I am concerned, this shotgun is the best-kept secret on the market in the bang-for-buck category. I bought it as an inexpensive backup, and it has become my primary shotgun on any match I can shoot without needing speedloader tubes.
How many rounds do you have through it?
Probably pushing 2,000 so far. I have only been shooting it as my primary since my 1100 bolt broke at the NWMGC
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As I recall in Sweeny's first AR gunsmithing book, he cut off a bunch of surplus M-16 20 inch rifles to 16 inches for the State Police and they worked FLAWLESS even in the frigid weather of Minnesota or Wisconsin or wherever he lives. An 18 should never be an issue. Miculek uses a rifle gassed 18" in his video series for Brownell's and raves about how soft it shoots. I'm thinkin your gunsmith has no familiarity with the last 10 yrs of AR developments. Noveske uses mid-lengths down to 14-1/2 and even some shorter than that. You don't need very much dwell time if your rifle is gassed correctly. We use mid length for 14-1/2 and 16s, occasionally 18s. Rifle length for 18s and up. You can read my thoughts on it here. http://www.moaprecisionllc.com/moa4_011.htm
Tom
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You can also vary the power to match your trajectory, as long as it has more arch than the ideal zero. That is how the Nikon BDC system is DESIGNED to work, and you can apply the technique to any second focal plane reticle. Once you find the zoom that puts the lines in the right place (maybe it's 5-1/4 or whatever) you can just return to that power to use the stadia lines. In the real world though, it doesn't matter whether it correlates with exact yardages since targets are hardly ever at even distances. As long as you know that line 3 is 420 yards instead of 400 (or wherever it ends up), you hold a little high for 453 and a little low for 408. All the distances are adjustments, really.
Tom
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Yes it was. I went off of information on another forum that the nova/ super nova would fit. Apparently it does on some of the early ones but not current production. I am thinking about making a run of adapter nuts on our CNC lathe if we can ever catch up. Since the Nordic modular tubes are available as individual components, you can buy everything but the nut from them and just screw the adapter nut to the Nordic tube. Not sure how many I would sell, but nobody seems to be serving the Stoeger market. I talked with arredondo about their speedloader brackets, and they said they can hardly keep up with the current selections and the stoeger is not on their radar. I may just drill and tap the sides of the receiver and adapt their Mossberg bracket to fit. Unfortunately that means customers would have to send in their shotguns, but as part of a package that includes opening up the loading port and adding a big side button I think I might start specializing in this platform. So far I still have no complaints. Will have more info coming up as I have matches almost every weekend for the next month. Should get a strong workout, probably another thousand rounds before Sept is over. I might actually have to clean it!
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Nothing I hate worse than guns that test OK then melt down at a match. The reason I have stuck with tube-fed shotguns so long in open class is the number of box-fed guns I have seen totally choke in a match, then heard the shooter saying, "don't know what happened, it was running FINE last week!" Since I RO, I see a lot of gear problems, and it's the unpredictability that bothers me. If the guy has been having problems and uses the gun anyway, bummer, but at least he wasn't surprised. When you walk away perplexed because you thought everything was A-OK then you learn not to trust your gear. I think the box mag guns still have a little more learning curve ahead before I would trust one for myself. Granted, RandR and Firebird really know their stuff, I still see name-brand modded guns crash at matches sometimes.
Tom
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Thanks also for the pics!
Tom
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I am not aware of any others that use the same thread, no. I will take it back apart one of these months to clean it, and measure and post the actual thread spec
. I do recall that it was both a slightly finer thread pitch (something like 1.5mm vs 1.75mm), and also .010 or .015 inches larger in diameter. The thing with mag tubes is that NONE are standard threads, they are pretty much all thin-wall square buttress threads, so diameter is determined by the thickness of whatever tubing the manufacturer spec'd for the tube. Possibly the tubing sourced in Turkey is a little thicker than what is standard in Italy. My son's cheapo H&R youth pump 20ga is chineeeeee, and ALMOST a copy of the lightweight Rem 870, but again, mag tube diameter was different, in spite of being the same pitch. Had to machine out his Choate extension threads as well. On the plus side, at the age of 11 he is out there shooting with me and his entire gear kit was under a grand. I wish I could say the same . -
Hi all-
hate to resurrect an older thread, but have some fresh info to add. It appears that there was a running change in production on the mag-tube threads. The current m3000 threads are a metric thread with a different pitch than the Supernova. I bought a Nordic modular mag tube, and I ended up re cutting the threads in the removeable adapter nut to fit the stoeger. Luckily, it is slightly larger, so even with the recut threads there is plenty of metal for a good joint after re-threading. An easy enough lathe job for any competent gunsmith. I have been using it to compete in open class all summer with a 13 shot extension, which allows 15 total with the ghost load. ZERO malfunctions since the day I bought it. I am impressed so far. I am working with arredondo in an attempt to get a speed loader bracket that is not drilled for the cross pin so I can adapt it to this platform. It does not appear to be a drop in fit for any of the Benelli models. If I can proto a speedloader funnel that works for this shotgun I will probably make several. As far as I am concerned, this shotgun is the best-kept secret on the market in the bang-for-buck category. I bought it as an inexpensive backup, and it has become my primary shotgun on any match I can shoot without needing speedloader tubes.
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Ken-
I was one of the R.O.s at NW Multigun in Bend, Or .First time using PractiScore and I must say, I was impressed! I brought it up at our 3gun meeting here in Grants Pass after I got back, and everyone on the board liked the idea of incorporating it into our local matches. Good job and THANK YOU for the cool app!
Tom (stage 7 RO, the big hairy guy)
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Hi all from Sunny Southern Oregon! I am a long-time shooter and semi-recent competitor, but new to the forum. I've been lurking and studying for about six months, finally feel like I can ask semi-intelligent questions. Looking forward to getting to know y'all!
Tom
After I got the last customer outta my shop for the day, I set it up in my mill. 1/8 carbide ball end mill cut great! Started at about 2K rpm, dropped it to 700 as it started to break thru because it began to chatter. Looked Beautiful! Re-assembled with the comp, test fired into the bullet tube, still a little up-n-down. Opened up to 3/16. Used a ball end mill again, but had to drop all the way to 450 rpm to keep it from chattering. Still no burr though! Muzzle flip is just about non-existent now. So, now the next guy knows! Sharp carbide ( I used TiAln coated), low rpm, steady pressure. Make sure to keep the chips clear so the cutter doesn't rub.
. I do recall that it was both a slightly finer thread pitch (something like 1.5mm vs 1.75mm), and also .010 or .015 inches larger in diameter. The thing with mag tubes is that NONE are standard threads, they are pretty much all thin-wall square buttress threads, so diameter is determined by the thickness of whatever tubing the manufacturer spec'd for the tube. Possibly the tubing sourced in Turkey is a little thicker than what is standard in Italy. My son's cheapo H&R youth pump 20ga is chineeeeee, and ALMOST a copy of the lightweight Rem 870, but again, mag tube diameter was different, in spite of being the same pitch. Had to machine out his Choate extension threads as well. On the plus side, at the age of 11 he is out there shooting with me and his entire gear kit was under a grand. I wish I could say the same 
Stoeger M3000 Scattergun?
in Shotgun - Technical
Posted
Oh No! First failure!
Had my first FTF at the match this weekend. I ported the barrel last Thursday and flared the loading port, Never got a chance to test all the ammo types before the match. While using low base 1oz Federal #7-1/2s (cheap Wally World bulk stuff) I had ONE instance where the empty ejected, but it left the next round on the carrier. Racked the handle and continued, no more trouble. I know 1oz loads are at the very light end for inertia guns, but it never had an issue prior to porting the barrel. This is one of the few shotguns I have ported where there was a seat-of-the-pants noticeable difference in recoil. While it is likely that the issue is related to porting the barrel, it is also possibly from running it for about 2400 rounds without cleaning other than blowing the metal chips out after the machine work with compressed air!
Tom