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Sherwyn

USPSA BOD
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Posts posted by Sherwyn

  1. Bad things can happen with brake cleaner and plastic.

    Many moons ago, I used gunscrubber on an STI, did not notice anything odd, until I started to have misfires. Traced it down to the bore of the mainspring housing starting to shrink and restrict the plunger movement.

    I now use WD40 to clean anything with non-steel parts. It is almost as good a solvent as brake cleaner and I've never seen it damage anything. Remember to remove the WD40 and relube the gun.

    WD40 - Bad oil / good solvent

  2. thanks for the input. i've now tried vn 350, vn3n37,7625,power pistol, and true blue with 115, 124, and 147 gr. i get failures to extract that act like too light a load and when i increase the load i get cases stuck halfway out(high pressure). at this point, i would suspect a gun problem except it's two guns that both ran perfectly with sp2. :( i'm going to try vn 105 & 3n38. in the meantime, can anyone spare a pound of sp2 to get us through the nationals? after that, it's two new top ends. thanks again. jim shema

    I went through all the powders you have listed and more, as I tried to find a SP2 replacement.

    Doubt if you will like the 3n38 as it really seemed to me like it had a very sluggish feel, and numerous mentions that I was shooting a flame thrower.

    True blue came very close to the feel of SP2, but gave pressure signs in one of my two supers.

    Hogdson Longshot is what I'm now using - 8.0 with a 121 gr , 168+ PF (was at 10.5 of SP2). Least amount of pressure of any loads I tried.

  3. Sherwyn,

    That's a very cool "upgrade".  I have the same issues with cases and many times just use my finger to slide in to place so the die can come down and do it's job.

    So how do you provide the air?

    Bob

    When I first tried it, I used a small compressor (worked fine, but have a cheap one and it is noisy).

    But since I happen to have a permanent compressor in my shop, I just ran a small air line to a holding tank by my bench. Really handy to have air available.

    Sherwyn

  4. I had problems with crushing cases and cases not feeding into shell plate all the way.

    I added a small air blow by attaching a length of 1/16" copper tubing to the case feed support.

    I flattened the end of the tube to create a fan pattern of air. Then bent the tubing so it blew just below the sizing die. As case moves up to die, the air pushes it fully into place. Small valve was used to regulate air flow - it really doesn't take much.

    post-4241-1118891225_thumb.jpgpost-4241-1118891265_thumb.jpg

  5. Had same problem with my 650. The only permanent cure I found was to add a very small air blow just below the sizing die. When the case comes up, it was just enough to make sure the case was all the way in place. I was never very good at the stopping mid-stroke and I crushed a lot of cases and broke several shell plates.

    Yes I know not everyone has available compressed air, but it made a hugh difference in my loading sessions.

    I have since switched to a 1050 for 38 super loads and the 650 does anything else.

  6. Bottom line:  if you want a competitor to do something that activates something else, and you give him lots of space to do it in, then it better work all over that space.  If it doesn't, then it's REF, Reshoot, end of story.  It's supposed to be a shooting contest, not a target activating contest. 

    Whether you consider that "freestyle" or not doesn't matter.  It's a matter of consistency and allowing the competitor to solve the problem within the parameters you've constructed.

    Troy

    Oh really!

    Are you willing to post that as an official NROI ruling that we can fall back on when we find a prop that doesn't work to our liking?

    Our rules already show this should be the case. Check Appendix C1 on popper calibration. Initial setup is done from the furthest position possible, but if a calibration is called for, it is done from where the attempt was made not where it could have been done. So if a 85 degree shot on a popper is available and it does not work, the calibration attempt must be from the same angle. Looks like a very similar situation to me.

    Sherwyn

  7. Stage setup

    Field course - 30' wide shooting box, start position at front center of box, swinger attivation rope in strong hand. 6 steel through port 15' to left, 2 paper left of port, 6 steel 15' right through port, 2 paper right of port, 2 swingers (completely exposed) directly in front of start position - 24 rounds total.

    Walk through explained that for safety please don't pull the rope hard enough to get prop rods into the shooting box, also the rope has a bunge attached so the rope will be pulled back out of the shooting box.

    Written procedure - On start signal engage as available, swingers must be activated before drawing pistol.

    What happened - On start signal shooter starts moving to left port as he pulls activation rope, but since he went sideways as pulling the rope, it ran out of bunge before it activated the swingers, rope was jerked out of his hand and landed between shooting box and swingers. After engaging the first 6 steel and 2 paper targets, he paused to figure out why swingers were not moving, then shot both swingers and finished the rest of the course.

    I'd rather not discuss the call that was made, but would like to know the right call and the rules to support it.

    Sherwyn

  8. This was the first time I shot the Nationals. My preference would be a shorter format, but I saw no problems with the squad size as it seemed everyone was always ahead of schedule.

    With the schedule that was used, it would be possible to have 1/4 of the shooters use a 2 1/2 day schedule the first half of the match and another 1/4 shoot the second 2 1/2 days of the same slots. Then the remaining half could shoot the full week on half day schedules.

    It was a great match, but it is really hard for me to burn a whole week of vacation to attend.

    Thanks to all the RO's, match staff, etc.

    Sherwyn

  9. There are three times that I remember having a shooter that I was RO'ing have a detonation. Two of the three were while using the hand over ejection port method and I guess the other was an attempted flip. None drew my blood, all three drew shooters blood.

    I will not catch the shooters round as I believe that directs my attention away from the gun I should be watching.

    But yet I hardly ever advise against it...

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