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Brian Enos's Forums... Maku mozo!


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    US Modifried Champ
  • Birthday April 3

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    Austin, Texas
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    IPSC, Steel, Pins, Windsurfing, Rock Climbing
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  1. When the Deltapoint first came out they had a triangle dot (hence the name) and the idea was you'd use the top of the triangle for precise shots. In reality, that took too long and the inscribed circle of the triangle was huge, so it didn't even work too well as a dot. Now nobody seems to want triangle-dot Deltapoints anymore. Be interesting to see if they fixed those issues in the holosun.
  2. Those partial targets are where a lot of people lose time by being scared of them and slowing down too much. If you can stick shots a couple inches apart, sack up and go. Set them up in practice until you can drive the hits (don't hero-or-zero unless it's for the 'grams). If you compare super squads to the ordinary schmoes at Nationals, you'll see something interesting-- they shoot targets like this almost full speed, but they'll slow down on pure head shots more than many others do.
  3. Yeah, look around at some of the CO threads about them. They work great on my Open guns, but had a problem with losing windage in slide-mounts. There are fixes and some are better than others.
  4. I made myself a custom plate for the S2 OR to do this with a R3Max and ran it at Nationals last year, but you lose some of the advantage of the low-mount the optic cut gives you by raising it up. Plus a little pucker-inducing with the number of R3's I'd had fail during the run up. I don't really recommend it unless you just have to have that scope and no other will do.
  5. Locally there's a lot less heat in Production, but some of that's due to a few good people cutting back on shooting. When (if) they reappear, I suspect they'll be back into PD. Division popularity at the local level seems to wax and wane with time. At one point our matches were very Limited heavy, but these days there's only a small handful. Open faded for a while but is picking back a little. Comes and goes. The new hotness is always popular (except when that hotness is Single Stack ) USPSA did some charts on division participation a year ago. Hopefully they'll
  6. It's not so much a modification as making that sort of locked-breech work without having two timed links in the system like the Colt 1905; something has to tilt. Where that tilt ends up is a choice of the designer. IIRC CZ's don't tilt down when locked up as much as 1911s, but they do tilt. 2011 Open builders for a long time either put a 1-degree tilt into the scope mount or scope mount screw holes to compensate (it's good to know which when buying scope mounts to keep things centered). There are also jigs to lock the barrel and slide together and mill them as one to "hide the d
  7. Here's a link to the article from 2010. Lots of good info there: https://web.archive.org/web/20101025075157/http://38super.net/Pages/Bullet Design and Feeding Reliability.html
  8. Yup, for a while STI was making them 'long' for some reason.
  9. The people that say they "successfully converted", do they shoot matches with these guns and not have problems? Or is it "I read somewhere on some forums I fogot that a friend of a friend did it and it worked"?
  10. They do, by a degree or two, similar to 1911s. It needs to move somewhere to get the lugs engaged and locking up with a slight downward tilt means you can use a shorter front sight (mentioned as an advantage in the 1911 patent, I guess the old SAA sights were getting hung up sometimes.)
  11. With the Dawson TLGR, I rack the slide back, press the tab. Now the spring is captured and I pull the slidestop to remove the top end at my leisure without any spring pressure and remove the spring and rod together from the rear like a reverse-plug gun, or I can turn the bushing and get the barrel out without needing to catch anything trying to escape. I believe the 'bushing' TLGR setup from Dawson has enough clearance to push the plug in and turn the bushing with spring pressure uncaptured, but I never do that. It's not "needed" on any 1911. But it's nice to have.
  12. I like them in my single stacks. Makes oiling and disassembly and reassembly easy without having to find or bend up another paperclip or target staple.
  13. Para mags are wide, but the Arredondo shim did also fit STI tubes-- Dawson used them in his STI "just right" kit way back in the day for this reason. I 3D printed one as an experiment for the Tanfo and it seemed to work, but it was fragile and annoying when removing the basepads so I switched to an arbor press and dies to stomp the ribs longer (you probably only have to do the rear one) and all is well.
  14. I tried them all when I ran a CO LimPro for 2 years and ~30,000 rounds. The only real solution for 9mm in ribbed Tanfo mags (K9 or Mecgar or whatever) is to extend the ribs somehow. Once you do that, they work fine. A hammer, close-fitting block and 1/8" steel punch works in a pinch. Spring and follower tweaks were never completely reliable. I tuned an MBX tube and it works, but I've heard mixed reviews and don't even know if they are making them at the moment..
  15. Easiest fix: load to 20 and get a MBX for your 'big stick'. The root problem is the mag narrowing ribs stop before the Henning pad starts. That widens the tube up enough that rounds can and do stack side by side. Examine one jammed up and you'll always see the jammed pair just below the end of the ribs. Fooling with springs and followers can reduce it, but won't be a complete fix. This same problem was a thing in old two-rib STI mags with +2 and +3 pads on them-- as soon as rounds get below the ribs, bad things happen. It's why there are STI big sticks and not
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