3gunnuts
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Posts posted by 3gunnuts
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Damn. Good price. I bought one a few weeks ago without the full top rail. Might have grabbed this one and saved $80. I am really impressed with the performance for the money. Runs 100%.
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49 minutes ago, sweatpants said:
Have you used this? Is there more information about this upgrade?
Check out Taccom's FB page.
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Taccom now has a short stroke upgrade kit. Have one on the way.
https://taccom3g.com/product/taccom-short-stroke-upgrade-kit/
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1) First match with a 2011 first stage didn't download. Lesson learned. Got it on video as a reminder.
2) Cleaned all mags and reinstalled SNL's on all mags. Forgot that 2 of the SNL's were fit for the shorter SPS tubes. Failed to seat.
3) Can't draw through the lock on a Safariland 014 like you can on a CR Speed WSM II.
4) Don't be lazy and not change from worn out shoes to your trail runners.
5) Taking a little too much tension off the hammer/sear spring makes for some fast double/triple taps.
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33 minutes ago, MikieM said:
Memphis, you've posted some good stuff on this forum. No doubt about it. But, I had to call you on this one.
When I say my felt recoil increased you have to realize it was not by much. And the increase in dot bounce was equally small.
Nevertheless there was an increase and the guys here need to know that there is always two sides to every story. Especially the newbies like our OP friend here.
Nothing is etched in stone, especially when it comes to these damnable PCCs.
Yes I am a newbie. from the guy that has been registered on here 2 months after I did.
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8 minutes ago, MikieM said:
Can you believe that guy. He's trying to sell something that will shorten the stroke of your AR, which will increase the recoil of your gun, by adding on to a device that's supposed to reduce the recoil of your gun.
Only in America.
Yeah John Paul, Tim and Max are all idiots. You need to show us the way.
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Looks Like Taccom just boarded as well.
https://taccom3g.com/product/taccom-short-stroke-upgrade-kit/
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9 minutes ago, MikieM said:
Your comment is not relative to the discussion.
Memphis stated that short stroking the AR 9 action produces less recoil, with a corresponding reduction in dot bounce. I disagreed with him.
This morning at the range I proved him wrong. At least to my satisfaction.
Uh. I started the thread. Pretty sure about what is relative to the discussion.
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3 minutes ago, JAFO said:
^^^ That's going to depend on the spacer. If you insert a conical spacer that sits inside the spring coils, It will short stroke your buffer by allowing it to bottom out sooner but it's not going to change anything wrt the spring.
No one is talking about conical spacers.
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1 hour ago, MikieM said:
You couldn't be more wrong.
Using a spacer shortens the spring. The more you pre-load, as you say, the more the spring shortens and the more it's effectiveness is reduced.
Regardless, if shortening the bolt/buffer stroke rearward in order to improve split times causes an increase in recoil then the trade-off isn't worth it, at least to my way of thinking.
For simplicity sake let's say a spring takes 10#'s to compress over 10 inches. If you preload the spring 20% by inserting a 2" spacer behind it the spring is still 10# at full compression. You have not taken any weight out of the spring. It does not increase or decrease the recoil at all. That is a physics equation. It is the same amount of energy just realized differently. Short-stroking changes the recoil impulse to to a faster, sharper, shorter impulse rather than a slower, duller, longer impulse. Some shooters will prefer the former while some will prefer the latter. This has been hashed over in the automotive suspension world.
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6 hours ago, SWprotected said:
Are you running the whole JP package or JP trigger and mil spec hammer?
Whole package with Speed Hammer on both. Everyone I know that tried it with the mil spec hammer ordered the speed hammer right after. I know triggers are subjective but I have yet to find one I like better. The only one I have found that is close is the Timney Calvin Elite. My teammate has one and it fells like nearly the same break/reset but at a substantial cost increase. He runs it in a 223 he has a JP in his PCC.
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21 minutes ago, MikieM said:
Just like I said, de-stroking my PCC by 3/4 of an inch did increase felt recoil. Watching the dot while I pulled the trigger showed a slight increase in movement, as well.
And why wouldn't recoil increase? Because I took away some of the action spring's ability to absorb the energy of the bolt/buffer as it traveled rearward. Eighth grade science.
Sorry, Memphis. No apologies forthcoming.
A spacer is not reducing the action of the spring. It is pre-loading it. The same amount of resistance is still there it is just being applied over a shorter difference. It simply increases the initial resistance the bolt must overcome before it can move rearward. The same amount of resistance is still there it is just being applied over a shorter difference. It has ZERO effect on the max compression weight of the spring. Since the spring in my system never goes solid whether I use a spacer of not I am not losing anything.
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6 hours ago, SWprotected said:
Wow, I did not know that it was that much of an issue. What kind of loads are you running, I have a friend who does not seem to have issues with the 24C. I would assume different ammo would matter.
I run Federal ammo.
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7 minutes ago, SJMPCC022 said:
OK, one last question.( how many times have you heard that ?)
Does this set up perform as you say because it is a " short stroke" system or because it is an improved system over a heavy buffer and long spring ?
I use this quote to aid in my question.
I don't have any interest in trying to time the bolt so it clears the next round in the mag by only .003 and peels it off as fast as is possible, unless that is the reason the recoil is held down. I would think going down that rabbit hole would lead to other problems, such as a round that is 50fps slower than the one you used to time the bolt with the spring and spacers. Or if it was hotter or colder the day you shot a match vs the day you set your gun up.
I mentioned in a different thread I bought an Armaspec buffer that was mentioned above. I put it in the gun and immediately didn't like it. even with the weight in the bolt out the gun felt heavier and " different". I sent it back, maybe I didn't give it a chance ?
I don't have mine set for minimum cycling as I get bumpfires if I do. Short stroking starts the bolt forward faster giving the barrel less time to rise per se before the bolt mass brings it back down. I tried my same setup with the bolt weight removed and got more dot movement so I put it back in. Again I am not sure if the Taccom 3 stage is helping more so than just the shear weight of it. With a PSA heavy weight buffer, which is slightly lighter, short stroked I get similar results. Feel is very subjective so you have to match to your shooting style. With my limited gun I like a slower recoil impulse I get from 180gr 40's vs the faster, sharper impulse from 165gr bullets. Gives me time to resettle the sights. With a dot I like the opposite.
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2 hours ago, biggulp said:
I had a Hiperfire 24 3g in my PCC for about 1,200 rounds, but recently replaced it with a Timney. With the Hiperfire, I broke a KVP firing pin at about 1,000 rounds. Additionally, I found that once the 24 3g got slightly dirty (~150 rounds), I had to slow down slightly to avoid beating the reset. Every single match I ran it in, I'd have 1 or 2 occurrences of hammer down on a live round towards the end of the match.
That is the issue I was having. Good to know the cause. PCC gets really dirty quickly. Going to run the JP for a while and see what happens. Plus now my teammate and I are now running identical setups in case one of ours goes down.
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2 hours ago, Acer2428 said:
I run an Armaspec unit and made my own delrin spacer a few months ago. 1" OD delrin is < $5 at Grainger. I drilled a 1/2" hole in the middle so the spring/rod can pass through. I have enough stroke that I can just barely manually engage the bolt catch, but not enough time for the catch to lock back on an empty mag. I use an open-bolt start for ease. I may try a longer spacer to further reduce travel, but this is a nice middle-ground for me.
Unloaded start position is bolt forward hammer down.
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I actually have one of each. Standard has an adjustment for pretravel though I don't really notice a difference between the two.
8 hours ago, SWprotected said:What is the difference between the regular and EZ JP
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1 hour ago, SJMPCC022 said:
That makes some sense, I will do that.
Again though, my gun functions 100% so far, and fires and spits brass as fast as I can pull the trigger. On a stage a few months ago there were three low targets laying back at a 45* angle over a low( 4' wall). It was classic stick the barrel over the wall and let 6 rounds fly as fast as is humanly possible ( for me at least) and get 6 hits on three targets that were tight shoulder to shoulder. At least half the squad said " holy s**t!, that sounded fast.
I'm not doubting( any more at least) just wondering what the speed/functioning advantage is vs. cost ?
Hammers up close especially where you are not having to aim there won't be measurable difference. Its shots where you actually need to aim. Less dot movement means faster aimed follow up shot.
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1 minute ago, SJMPCC022 said:
Maybe I am missing something here but the physics don't add up to me.
If I were to put an inch of spacers in the back of my buffer tube I would think the bolt would bottom out to early and without all the pressure the spring would provide if the spacers were not in there? This would result in the bolt hitting 18% to 20% harder.( length of available tube behind the buffer minus one inch) What are you gaining?
Also, with any of the aftermarket buffer systems,( I bought one and returned it after installing but not firing one round) they are shorter to start with. Again, what are you gaining?
You need to look at a Taccom 3 stage buffer and it will make more sense. It is longer than a carbine buffer and has a spring inside that pushes against a "piston" on either end. Yes the buffer hits back of the tube faster but it also returns to battery faster. Even with my spacer the spring does not go solid due the collapsed length of the buffer. The additional weight even compared to a PSA heavy buffer also helps.
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This is why I moved away from a race holsters to kydex hopsters. Plus my sponsor only makes kydex. They do make some cool Open Class kydex for those that want the extra peace of mind.
Check out Windfall Defense Custom Kydex.
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1 hour ago, jkrispies said:
How are you accomplishing this? Pics?
EDIT TO ADD: Just found the other thread where you discuss this. I’m already using a spacer to make my rifle length into a carbine length. What size spacer have you settled on? And did you do anything to/with the spring?
I have the Taccom 3 stage with reduced power rifle spring it comes with I have a plastic spacer and right now 4 quarters taking up about an inch. If I go much shorter it is really easy to bump fire a short burst if you go light with your grip. Since my son is also shooting this I want to avoid that. Originally I thought it was maybe the way short stroking interacts with the Hiperfire Trigger but it happens with the JP also but not as easily due to the more solid "wall" on the JP trigger break. Recoil is sharp but short lived and the dot recovers faster than just the 3 stage alone.
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15 hours ago, armedmoose said:
Video of product to improve your PCC with not one shot fired or shown..
I need an example review video to be sold, not just too guys promising their tonic will cure all my PCC woes.
There are plenty of videos of short stroked AR9's. They are not breaking ground here they have just signed on with what most people have figured out, short stroke improves function and decreases cycling time. How it feels is subjective but I have tested several hundred rounds the last 2 weeks with various combinations and I am getting faster recovery with a short-stroked setup than with anything else I have tried. I have also found that short-stroking a regular buffer system is more effective than not short-stroking a Taccom 3 stage. I currently have the 3 Stage short stroked.
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I just pulled my new Hiperfire 24 3G/Reflex out and replaced with a JP. I don't have the EZ I have the regular JP adjustable and not the Armagedon as I like curved triggers. I run the JP in my 3 Gun rifle so they feel the same. As far as the mechanics go the Hiperfire has just a touch of creep and a longer reset. The JP has a solid wall and breaks like glass. The Hyperfire is a nice trigger butt the JP is much nicer in my opinion.
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On 8/4/2018 at 6:18 AM, MemphisMechanic said:
Stack quarters in the bottom of the buffer tube when doing your testing. Easy way to have a highly adjustable “spacer.”
Some guys make a spacer from delrin rod or something similar, and some stick with a couple dollars worth of quarters.
Found a round chunk of plastic laying around the shop. Tried quarters but been been turning them concave. Feel sorry for the vending repair guy that is going to have to fish them out of a machine.
JP jumps on the short stroke bandwagon
in Pistol Caliber Carbine
Posted
I do as well. Plan to try it side by side with an identical gun and make comparisons like carrier weight in vs removed, extra wave spring at back of tube, etc. Will post my findings and opinions of my teammate and myself.