DISCOVERY TEST

[melloroadman]

I put the trigger back to stock form except for the return spring to get use to heaver weight pulls and thought I would chrony it again to make sure all was well . Also I might replace the striker spring with a lighter one for the indoor range and save some air . I have learned it is good to test before and after so I know what's going on if problems arise . Here are the numbers .
CPH 10.5 1700 FILL (1) 868 (2) 872 (3) 871 (4) 877 (5) 869 (6) 865 (7) 864 (8) 873 (9) 869 (10) 868 (11) 869 (12) 860 (13) 859 (14) 858 (15) 854 ( 16) 853 (17) 847 (18 ) 844 ( 19) 839 ( 20) 836  average is 861 . All the shoots were in one small nickel size hole at 16 yards .
CP 7.9  1700 FILL (1) 946 (2) 978 (3) 975 (4) 972 (5) 970 (6) 966 (7) 965 ( 8) 960 (9) 956 ( 10) 953 ( 11 ) 946 (12 ) 949 (13) 923 (14) 935 (15 ) 929 ( 16 )923 (17 ) 921 (18 ) 914 (19) 908 (20) 903  average is 946 but I had a 2 inch group now . This was done with out any power adjuster as well . The lights are not the rifles favorites for sure . Marvin

[tinbender]

Question Marvin,

Norm is doing some trigger work and I mentioned that too light a pressure on the mousetrap spring gives inconsistent flow from the valve depending on how hard the trigger is pulled. Any idea why? or should I wait to the conclusion of the test?

Thanks Dave

[melloroadman]

From what I have seen it causes to fast of a parcel release of the hammer and the sear drags on the hammer causing inconsistency . Only a theory though . Also I might add that trigger spring I have heard some are playing with is the sear spring and that is a very unsafe way of modding the trigger IMO . I was happy with the lower link mod but had the drag on the hammer with the 2 screw mod . I have not tried the adjustable sear that Big Ed has nor have I hear much about it . I am learning to control my self with heaver weight triggers so I can be accurate with hunting rifles as well . That is why I removed the lower link mod from my Discovery . Each man is on his own journey . Marvin

[tinbender]

Thanks Marvin,

I would like to say I understood completely but having trouble wrapping my head around the sear drag thing. I did experiment with different pins in place of the safety to change the tension on the main spring and saw the result. Worst case at 15 yards POI dropped a foot.

I totally agree with your thoughts on trigger weight vs. consistency. For myself target weight triggers are more at home on the bench than in the field anyway. Polish and lube so far on this one and it's not bad. Adjustment for pre and post travel and call it done I think.

Dave

[5thumbs]

I performed the 2206 trigger mod described in the library (by Diamus).   I DID not install the adjustment screws or lighter spring yet.  I need to find  a hardware store that has these parts, or order them.

I got the surfaces "shiny smooth" (dremol polishing wheel), I was shocked on how rough the surfaces were!.   I put a small amount of moly on all contact surfaces.   I like the travel of the 1st stage, but the pressure needed to pull thru the 2nd stage is just too much and I think it effects my accuracy.   Will the spring swap, or adjustment screws have more of an effect of lowering the pressure needed to pull thru the 2nd stage?   Is there a source for the springs that does not entail ordering 10 of them and paying more for the postage than for the spring?

[melloroadman]

The screw mod will lower the pull weight yes . I bought my screws and spring from OSH any hard ware store should be able to help you . I chonyed mine after the mod and had a problem with consistency after the mod and many other have as well . Then again many rifles are not bothered by it so be sure if you do it to chrony before and after . I removed the screws and did the lower link mod which is listed here and my rifle settled down again and I was happy with the results . The travel was about the same as stock but the pull was about half. The chroy numbers are all listed in the lower link thread as well . Good luck which ever way you go. Marvin

[5thumbs]

Thanks,  I will hold off for now and think about things.  Sounds like everything is reversable so there is no harm.   Does the spring replacement give a lighter pull also?

[melloroadman]

If you replace the spring it will make a noticeable change in the pull . And yes every thing is reversible . Marvin