RR trigger springs and Lock Time
I just changed out my original RR trigger springs for the Tubb Speedlock springs. Eighteen bucks worth of pure heaven! No, I do not work for Dave! Best money I ever spent.
My q is the following, which has a better lock time, the Jewell trigger or the RR? Did anyone out there ever test this? Any data out there? I realize the expense to test for most of, myself included, is out of our reach. But, anyone know the answer?
just curious
billy boy
I have no means to test it, but in general the Jewel is slloowww. It doesn't use a standard hammer spring. My RR seems faster.
Frank
Didn't Zediker publish data for lock times? It has been too long since I read that stuff.
I have that book here somewhere, I'll take a look later....
Originally Posted By RegionRat:
Didn't Zediker publish data for lock times? It has been too long since I read that stuff.
I have that book here somewhere, I'll take a look later....
No, while he had a chapter in the book on triggers and talks about them, he doesn't include data or times. Sorry.
Originally Posted By fcernese:
I have no means to test it, but in general the Jewel is slloowww. It doesn't use a standard hammer spring. My RR seems faster.
Frank
Yes, I have both and this is what I believe is the case. I think with the Jewell you can measure the lock time with a calendar.
I have yet to test, but I will see if the RR will make a difference in my standing scores. I suspect it will, but how much remains to be seen!
The hammer spring on the RR is one BEAR. sorta like a mouse trap spring. it hits with authority.
I know with a 22 upper (converter) set on the lower, the Jewell won't work! hits are too light!
billy boy
Originally Posted By SoldierBilly1:
Originally Posted By fcernese:
I have no means to test it, but in general the Jewel is slloowww. It doesn't use a standard hammer spring. My RR seems faster.
Frank
Yes, I have both and this is what I believe is the case. I think with the Jewell you can measure the lock time with a calendar.
I have yet to test, but I will see if the RR will make a difference in my standing scores. I suspect it will, but how much remains to be seen!
The hammer spring on the RR is one BEAR. sorta like a mouse trap spring. it hits with authority.
I know with a 22 upper (converter) set on the lower, the Jewell won't work! hits are too light!
billy boy
I tried a 9mm upper with my Jewel, hits where too light on it as well. That's when I got the RR. You want a fast lock-time, try a Geissle. That's like a bear-trap spring. I can't go back to a Jewel anymore.
Lock time is over rated. Learn to squeeze the trigger when the sights are lined up with the 10 ring. A great trigger won't get you more points than a good trigger.
I agree locktime is overrated, but a trigger that reduces the "finger-time"––that time between when your brain says go (or your brain lets you take the shot, or however you think about it) and when the sear actually releases makes a huge difference. The reaction time is about .2-.25 seconds, if your trigger gets you down near the lower end of that range, the total reduction in time from when your brain says to go, to when the bullet leaves the barrel will be much, much lower than the couple of miliseconds you'd gain by changing from a slow to a fast hammer. That's how a great trigger is better than a merely good one.
Google is your friend. Learn to use it.
http://www.zediker.com/articles/AR_triggers.pdf
Mixing and matching parts on a FCG is asking for trouble
I've played around with measuring the "hammer fall" time (sear release to firing pin strike), which is a little different than lock time (sear release to primer strike) with a fairly gross system, but it had a 1ms resolution. I did some measurements on my Geissele and my RRA two stage for fun. When the Geissele was first introduced, it's lock time was cited at about 8ms versus the 16ms of the stock. I measured it at about 4ms...repeatedly...since I was questioning my own results. Got confirmation from Geissele that their own measurements showed 4.5ms or so. They also say that stock is about 8ms. I measured the RRA at 7ms...Geissele says they showed about 6ms and stock at 8.5ms. I didn't think to measure my POS Jewell, but might do that if I have time this weekend along with some of the other triggers I might have installed in lowers.
Originally Posted By Collector497:
Lock time is over rated. Learn to squeeze the trigger when the sights are lined up with the 10 ring. A great trigger won't get you more points than a good trigger.
I agree. the only thing that matters is the total time from pull to out the barrel.
I think my problem was simply, the trigger springs were, flat out, shot. finished.
I put in the new Tubb Speedlock springs and my offhand did improve in the first outing. Need more data, more range trips, to really say it was significant. but, looks good so far!
Just my opinion, FWIW, not much, but the Jewell is overrated. My first Bushie lower came with a one stage that was superb. People in the know said that Frank White at CLE was making them for Bushie! it was a damn good trigger.
Yes, I need a good one, not a great one!
billy boy
center 'em up
BTW, the Zediker article was good. I have a great deal of respect for Glen, but I am not shooting to his level yet. He is one knowledgeable dude.
I have been to the range twice with the new spring set up. Impressed both times, to say the least.
I have not shot offhand in a while but I did notice the wide shots were greatly dminished!
I think the biggest factor in play here is that the old springs were completely shot.
I do not work for Mr Tubb, but for $18 worth plus shipping, it's the best deal in town.
My Jewell may end up on eBay.
billy boy
