adrone

Come on guys……I fit this beavertail with a dremel and a piece of sandpaper in my basement with a headlamp. And I’m really good at screwing things up.

Just for comparison Here is a photo from this thread and then a photo of one of mine i bought used from a GM out west. Mine was built by a guy named Gary Natalie? As I understand it the one I have cost in the 4’s when it was new.

It is but by the time the slide is rearward and ejecting it would not be. You bring up an interesting question for a lefty. With a thumb rest in front of the ejection port you would think your thumb would or could get in the way of ejection? I wouldn’t know. Hmm

Yeah I dont know what the gun in question costs. I know when a friend built our opens we spent somewhere around 2k in parts and then he did the fitting and machine work. Thats with us choosing what we thought was the best of everything with regard to parts. I guess that would leave a couple of grand for the work or labor on a gun in the 4’s. A couple of grand is no longer a couple of grand in Biden world so far be it from me to tell someone how cheap someone should be. I personally would rather pay more for great attention to detail on an open gun though. One tiny bur, one out of spec tolerance, or a slightly worn out spring can ruin many of your days with an open gun. Detail matters.

I was just noticing that in the first page pic. Glad you said something before I had to. Not only that but on the second page pic the sponsored shooter the beavertail fit is bad. Not good fitting work. Not that that kind of fitting makes a difference but it would make me question the time and level of detail that was put into rest of the gun.

I wanted to see if any of you guys have experience with both the Sig mpx pcc and the new Jp5. Ive had both a Gmr15 and an Mpx Pcc previously. Compared to the Gmr the Mpx was lighter recoiling and faster than the GMR for me. For other reasons Id rather not have another Mpx but Im looking at the new Jp5. How does the Jp5 recoil and rise compared to Mpx? Also it looks like the jp5 competition version has a different handguard and a vertical upwards pointed steel comp as opposed to the steel challenge version with the magpul guard and a titanium 3 port on each side horizontal comp. For Uspsa which would you prefer or suggest?

I just installed a vario trigger into an sti plastic grip. On a gun that ran perfect. Once in I set the trigger around 1.75lbs…..then 2lbs. Hammer follow. Gave the return and sear spring more pressure up to 2.5 lbs…..still hammer follow. Disco moves freely until full pull all the way back then binds. Everything else seems good. I had not adjusted the pre travel screw it was all the way out doing nothing. I adjusted it in reducing the pretravel and thereby the end of squeeze and it stopped the disco binding and hammer follow. Adjusted the trigger back down in pull weight. Still no follow. The pre-travel adjustment solved the issue seemingly Is this normal? Never seen this before with other triggers. Am I overlooking something?

I answered my own question. The cheely beavertail that fits the ss grip fit very well on an sti plastic grip on same frame. Small protrusion at bottom near mainspring but good enough.

One of my current guns has a Cheely SS grip. Too heavy for my taste. I want to switch it back to plastic. Its a CK narrow frame on that one. Of course it has the cheely or ck tail that goes with the ss grip. Any ideas on which beavertail I may order to switch back to plastic without grinding on the frame? I don't mind reducing a tail to fit the frame but I dont wanna grind on the frame its nitrided.

Just as everyone’s draw times can be different the same applies to audible and visual processing times and perceptions of those times.

Im not asking whether the button push is important. As I stated in my post that I understand its the beep and not the button push that means start. And yes it could be grey Ill say again with regard to the beep . If the RO or someone else slowly processes the beep in their brain…..If the shooter reacts to a beep faster than an RO’s brain can process and perceive the start of the beep along with observing the shooter then that could be a “grey” area where a mistake could be made. If one reads about reaction times to both visual and audible signals in any sport there are large differences between peoples processing times. Large enough to equal a Uspsa split even. It happens so little it doesnt matter but for the sake of argument there is room for an error. This issue has only happened to me once since I started shooting so. Interesting though that its .30 on duration. Thats a long time. I have an old pact timer that sounds longer than that even. Heavy amps are a curse. Ive since turned them off. You hear too much…..it is distracting and makes you wanna jump when you know the button has been pushed. But yes i am curious as to how long a timer takes to beep after button same as I was on beep duration. On this old Pact it sounds like .10 ish. between push and beep. On another its faster.

Its a very small minority who do that but it happens. Usually to whoever that particular RO thinks he is competing with.

I think you are misunderstanding. Im not trying to game the timer or impress anyone. Im just asking a technical question about something im wondering about. Instead of replies with the actual information I get a bunch of comments like yours.

And yes there is a potential grey area between when you think you heard an audible “beep” and when someone else thinks they do. Everyones perception and reaction time is different. Button push its not debatable I already mentioned no argument there. My first comment I said “I’ve since learned it would be the beep and not the button push”

I don't wear amps with the intention to jump the start. I just happen to wear them and i hear the button being pushed so. Im simply asking a question on these timers. So you can drop your attitude. If you wouldnt say it to me in person in that manner then don’t say it on the net.

You can take your smart remarks somewhere else Firemarshall Bill.

Some of our RO's make sure they reset it right after you shoot. So that you can't check the accuracy of your time of course....I make sure not to squad with those.

It definitely isn't in seconds so its not on random. Instant isn't instant. Im sure theres a very small delay I just wonder what it is.

I dunno if the click I hear is a release or a push. Its just a button click noise. No idea on which timer last time I dont usually look at the timer when im shooting,.

Wow ive never had any brand of spring last that long. I guess im special abusive or something

Asking due to a problem at a match. Im wearing double amps. In ear and muffs both with amp. I can hear the timer button being pushed. Clearly. Every time. I got a procedural. Argued it. Became a problem at a match where me and the Ro's perception differed. Later Ive learned it would be the beep not the button push. Which could get grey and depend on the listener. Does anyone know what the actual delay on some of the common timers we use are between press and beep? Also the duration of the beep?

I forgot spacers even existed until you just mentioned it.

So ever since our local open guru moved on us suddenly...... I spend most of my time kicking myself with minor typical open gun issues. Im learning that if you don't have a local gunsmith familiar with these or an open gun guru locally life is much suckier in open unless you learn it all yourself. Anyone know of anyone local to Atl? Maybe Air Cooled Racer will return some day??? Thanks Allen lol

I had bad luck with MBX springs wearing out quick on my big sticks. They were only lasting me 2-3 months before failures. I would take them out and they would be 3-4 coils short after that time. Partly my own fault for both overstuffing them and leaving them loaded sometimes. All things equal or equal abuse on my part Mbx have been the fastest to wear with mine. Grams slightly better and Ismi's have been. lasting about 5-6 months or more. I was not able to get the Ismi's to work in the Mbx tubes. Then I had one open gun that just wouldn't run an Mbx at all no matter how many times different people tried to change feed lips so I gave up on them.