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bikerburgess

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Posts posted by bikerburgess

  1. care to elaborate? if not, thanks anyway for your input.

    Sorry, didn't have time to go into it at work.

    Like others have said, burn rate, coatings, powder volume bullet weight, and many other things play into load development.

    Because a certain powder may burn at a rate that leaves some powder still burning as the bullet leaves the barrel does not mean reducing the amount of powder will make the load more efficient. Remember that a powder charge will have X number of individual powder gains burning at the same time to produce the gas (and therefore pressure) to propel the bullet down the barrel. Reducing the powder charge will also reduce the number of gains burning and the volume of gas at any point during the burn cycle, thus reducing the muzzle velocity regardless of muzzle flash.

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  2. Send Troy McManus (DNROI) email dnroi@uspsa.org

    That said is the slide racker striker plate sold and labeled as a firing pin stop? If not I would highly doubt it's ok

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    http://shop.springerprecision.com/product.sc?productId=257&categoryId=25

    Thus is the part in question yes it is a solid one piece replacement.

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    So they call it a "EZ slide racker" seems like a stretch to claim is a firing pin stop when the manufacturer doesn't even label it as one.

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  3. If it's like the Hornady then I would play with the position of the wiper springs and the center disk. I have a Hornady and it can fill the feed tube (spring) in about 1 minute. I can load 100 9mm in about 5 minutes without getting ahead of the feeder. Also it feeds faster with a pretty large pile of bullets in it, I normally put in just about as many as fill fit without spilling when I start.

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  4. bfd6fa9251cf19ee522f5ce7c9708183.jpg

    This fix has been working great for me for the last 1500 rounds. The rod is a piece of welding rod I put through a hole drilled in the bowl (right now it's just taped in place on the out side) it stops a second case from being able to make it around to the drop window so only one case can drop at a time. The sheet metal ensures that no cases ride over the rod and also bumps and upside down cases out of the notch in the case plate. Between that and adding a brace to keep the feeder from moving around as I run the press, I haven't had any jams since I added the rod (I had the flipper and brace for a while but I was still getting jams every hundred rounds or so)

    Also with this set up I was running 500 ish cases at a time in 9mm or 38 sort colt as you see in the picture

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  5. Ar15sport.com

    Is a small shop that specializes in A1 parts. If it's available John has it or knows where you can get it. If it isn't on his web site call him and he will help you out

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  6. The real answer to the question is no but the perceived advantage would make it into a custom 2011 division like Limited and Open. When Ben started wining Nationals he was in the minority shooting DA/SA guns now that everyone has jumped on that band wagon plastic is the minority. I have watched shooters change from GLOCKs to CZ and never reach the same match performance with the CZ that THEY had with the GLOCK, I';m not saying one is better than the other just that some shooters will perform better with different pistols. Unfortunately (unless you are a gun seller) many(most) shooters do not experiment scientifically to see what truly works better for them, or practice with what they all ready have to get better, they instead buy whatever the new hot pistol is.

  7. How about you have to solve a puzzle before you draw and engage a target with one shot, sounds like an awesome stage.

    I ran a stage at one of my club matches that was just 1 popper, I get requests to do that again than any other stage I have run (the One popper was at 80 yards I think that kept it interesting)

  8. I have one on a G22 with a 9mm conversion barrel. I really like how it fits to the slide (the back of the comp is contoured to fit over the bull nose on the factory slide) so far I've only run minor in it, with a 11 lb spring it runs 100% with my 124gr production load. Tried it with some hotter long shot loads and it was super soft but my wife had a few FTE with that load.

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  9. Would it make you feel better if they were simulated flowers and you took a procedural for trampling the plants?

    Ultimately, I don't care what a MD wants to incorporate into a stage. Just don't tell me that simulated land mines are practical and expect me to agree.

    Only things you see on the way to work or going to the grocery are... practical?

    What if they were snapping turtles? Honey badgers? Pressure cookers?

    Your kids toys on the floor while an intruder is in your house. Or the dogs squeaky toy that gives away your location.

    In fact, squeaky toys would be fun!

    Kids toys? that would have to be Logo's and you would have to be bare foot. no penalty for stepping on them other than how much it hurts affecting your stage plan.

  10. Putting a inertia gun against s post it's the exact opposite of what it needs to function. The gun must move during recoil in order to work. Try holding it softly and see what happens

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    Actually that is wrong. Inertia guns need solid resistance to run. You can in essence induce malfunctions just like on pistols by limp wristing or limp shouldering. (not firm enough.)

    correct me if I am wrong but on an inertia gun when fired the bolt carrier remains in place (due to inertia) as the rest of the gun moves backwards under recoil compressing the spring in front of it then as the gun decelerates from the initial recoil impulse the compresses spring pushes the bolt carrier to the rear cycling the action. https://www.youtube.com/watch?v=BEA2yRC9Qb4 putting a gun against a post seems like it would stop that initial rearward movement enough to cause issues.

    yes having a really weak hold could cause issues with the rest of the cycling action, A post is not the solution.

  11. I have and do play in all the Divisions, I have a cheep GLOCK I built to play in open, as I have a weird thing for cheep guns. Open division can be a different game than the iron sighted divisions, it is so much more about going fast than even limited that it brings a whole different aspect to the game. Did I stay in open? well I have not really stayed in any division because I like guns and want to shoot them all (I have shot every handgun I own in competition, Speed Steel, IDPA or USPSA) Yes Open can be expensive but it can also be a lot of fun, I just like change too much to stay in one division.

  12. The slide starts traveling back as soon at the charge ignites. As the bullet accelerates one way the slide/barrel starts in the opposite direction, equal and opposite reaction and all.

    Given bullet travel down the barrel time is around .5ms (quickload estimate) the slide will have traveled something less than .15 inches (.15 is 25fps for .5ms).

    No, it doesn't. There is a rearward force exerted by the case on the breach face, and a forwards force exerted on the barrel by the bullet. Those forces are equal until the bullet leaves, at which point recoil begins.
    How does your theory explain the function of blowback pistols? In a blowback design there are no locking lugs and the barrel is rigidly attached to the frame.

    It's not a theory, it's physics. In a blowback gun there is a rearwards force against the slide. Because the slide is not locked to the barrel, and the barrel, attached to the frame, is being held by the shooter, the slide begins to move immediately, with movement damped by slide mass and spring weight.

    With a locked breach firearm the rearward force on the slide is cancelled out by the force on the barrel because they are locked together.

    You may want to watch the above video before you dig into your position that the slide doesn't move until the bullet leaves

  13. Playing with heavy bullets in a Tanfoglio 9mm (170gr) I ran into a load that hit very high, compared to the lighter bullets. best I could figure is the bullet was still in the barrel when it started to unlock from the barrel.

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    Unlikely, heavy bullets hit higher in revolvers as well and Revo barrels are fixed to the frame.
    That was not the case in this instance, I am used to and have observed POI changes with different bullet weights and velocities in this and other guns, this was WAY outside that range, if I recall correctly it was about 8" higher at 10yd than a similar PF 147gr load

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  14. I generally try to point out a "dead man line" to shooters when targets are visible that could get them in trouble. Problem is WE ALL forget where things like that are when the beeper beeps

    Love hearing this.

    I get frustrated at matches when I run across an RO who gets cagey when asked to clarify the 180 on a particular target from a particular position.

    Happened most recently at a small major. Squad was trying to get a better handle on the 180 for a target at the start of the stage.

    It took way too much effort on our end to get more than: "Just don't break the 180 and you'll be fine."

    Makes me really appreciate the ROs who are confident enough to help a squad understand what is and isn't a safe shooting position.

    When asked about the 180 on a target, I will always say if it is down range of the position asked about. I Will Not say "your fine shooting it from there" or "you won't be breaking the 180 there". I've seen the argument erupt after a run when the competitor gets DQed and says you said it was ok from here! When in actuality the shooter over swung the target and broke the 180.

    Targets are either up or down range from any location, and that is not the same as where you point your gun.

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