Durtywrench Posted September 16, 2016 Share Posted September 16, 2016 I heard that people were experiencing problems with the JP silent captured spring .. I can't for the life of me figure out how it would .. can anybody clue me in ? I run one and I like to know things like this Sent from my SM-N930T using Tapatalk Link to comment Share on other sites More sharing options...
Religious Shooter Posted September 16, 2016 Share Posted September 16, 2016 Well I would think this would be easy to see if it's BS or not. Just go to the range with a standard spring and buffer and shoot a couple of groups with and without the JP SCS. Link to comment Share on other sites More sharing options...
AFguywhoshoots Posted September 16, 2016 Share Posted September 16, 2016 I have one in mine and haven't had any issues at all with accuracy. I am not sure what it could really do to effect accuracy and this is the first time I have heard of this. Link to comment Share on other sites More sharing options...
1time Posted September 16, 2016 Share Posted September 16, 2016 Not saying this is an issue but I can see where it could happen. With some receiver/receiver extensions, the captive spring is loose. If that happens the carrier may be in a different position on each shot.My captive spring was too short and I shimmed it with a washer in the end of the receiver extension. I don't have any accuracy issues but the instructions cover this so it was right the first time I shot it. Link to comment Share on other sites More sharing options...
BigBamBoo Posted September 16, 2016 Share Posted September 16, 2016 I have 4 rigs with SCS in them. All shoot EXTREAMLY well. Then again, all have JP uppers on them. So....??? Link to comment Share on other sites More sharing options...
outerlimits Posted September 17, 2016 Share Posted September 17, 2016 i call BS. mine shoots sub moa and that's fine fer me. Link to comment Share on other sites More sharing options...
Durtywrench Posted September 17, 2016 Author Share Posted September 17, 2016 I've had good results also. Just trying to figure out how that would affect accuracySent from my SM-N930T using Tapatalk Link to comment Share on other sites More sharing options...
fastshooter03 Posted September 20, 2016 Share Posted September 20, 2016 Spring weight and recoil system mass affects how long the bolt is closed which can affect velocity. Heavier spring/more mass means more velocity. Try it the next time you chrono. How this affects your rifle you will only know by trying different weights and mass. I'm not talking huge amounts but enough to see on the chrono sheet. Nick Link to comment Share on other sites More sharing options...
billdozer Posted September 21, 2016 Share Posted September 21, 2016 I believe it was matt martini that was having accuracy problems and they went away by changing the scs out for s standard setup. Link to comment Share on other sites More sharing options...
Bigsampson Posted September 21, 2016 Share Posted September 21, 2016 I can only tell you my experience. Had a gun that consistently was running sub to at moa. Saw accuracy dropping off and fiddled with several variables. Since I had a back up gun set up exactly the same, except barrel length, I had the opportunity to do some comparisons. Everything pointed to the spring system. With my guns, I saw a significant improvement with the heaviest spring in the captured recoil system vice the lower rated springs. Also, on the lower rated springs I tried placing a quarter or two in the buffer tube (to take up the pre load on the springs) which also made a positive difference depending upon load and the spring rating. Bottom line is that I feel that the spring in the gun that was falling off in accuracy was loosing oomph, by going to a new heavier spring, the accuracy was right back to where it was. The why?? I personally feel that by having a bit of a heavier spring you get a more consistent lockup of the bolt. I can't prove it, but that would seem to be the logical reason. Link to comment Share on other sites More sharing options...
CGoodwin Posted September 21, 2016 Share Posted September 21, 2016 Interesting! I just installed a SCS in my SBR. I'll have to do an A/B comparison at the range. Link to comment Share on other sites More sharing options...
billdozer Posted September 22, 2016 Share Posted September 22, 2016 I THINK most people notice the problems when they try going to the lighter weight springs trying to reduce gas requirements and recoil. Link to comment Share on other sites More sharing options...
nelson1each Posted September 22, 2016 Share Posted September 22, 2016 I don't shoot my rifles a whole lot(shoot pistols mostly) but all my ar's but 1 have them and I have zero issues with them...I recall seeing that there is a newer model of them out now too the last time I looked Link to comment Share on other sites More sharing options...
gnhowell1 Posted September 22, 2016 Share Posted September 22, 2016 N 20 hours ago, billdozer said: I believe it was matt martini that was having accuracy problems and they went away by changing the scs out for s standard setup. Turns out it was a barrel issue but we did quite a bit of testing with the SCS spring rate & BCG's. What we found out was that if you use a UL BCG and a light spring (white or black JP) accuracy was not as good as with the same BCG utilizing a heavier spring (green or yellow). Ultimately, going to a WOA 1/7 twist fixed his issues with the 77gr ammo. Link to comment Share on other sites More sharing options...
billdozer Posted September 23, 2016 Share Posted September 23, 2016 Good to know Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now