Looking for some insight for an issue I’m having with my CDG. Getting light primer strikes. I’m pretty confident I have the trigger hanger set up correctly, no drop or cock on close. I watched and rewatched Teds video on how to set it up.
as perfect as I try to make everything, I’m not, so if someone sees something I’m doing incorrectly or plain stupid, by all means I want to here about it.
History of rifle goes as stated:
First dev/break in load of 25 rounds
Hornady virgin brass
33 grains Varget
109 ELDM
CCI BR4 primers
2 of 25 rounds did not fire, both rounds I recocked the rifle and tried again with no detonation.
At this point I made the mistake of blaming the primers, I had very similar striking marks as a fired round. I assume since I tried it twice the firing pin was able to make a deeper divot on the second attempt, there for making them visually similar to a fired round.
My second dev/break in load I did 50 rounds exactly the same as the first 25 (I was looking to test the primers to see how many wouldn’t fire at this point). 3rd round of 50 didn’t fire initially, I cocked the rifle again and it went. 4th fired. 5th did not after trying it twice. After inspecting the primer is when I noticed the light strike, so I took the rifle out of the chassis and proceeded to adjust the trigger hanger, my buddy and I determined that I pushed the trigger hanger to far back, essentially over adjusting it. So I loosened the set screw, overthinking it. 6th round didn’t go off after trying it twice. I stopped playing with it and went back home to figure out what was going on.
I have 3 ways to problem solve:
1. I can try using federal SR match primers, I’ve been told they’re a softer primer. Correct me if I’m wrong.
2. Order the next 2 heaviest firing pin springs from ARC, standard is roughly 16lbs, next heaviest is about 18lbs, and the last is roughly 22lbs. Test them using my currently loaded CCI BR4 primers
3. I can make a spacer to shim my current firing pin spring to potentially increase the weight. I’m leaning away from this idea because I won’t know what the weight would be therefore I wouldn’t be able to decide which spring I should order as I would not want to continually run with a homemade spacer.
For those going to ask rifle set up is:
6GT
26in preferred 1:7.5 barrel
MDT ESS chassis
AW mag with mag latch filed ~5-6 thou shorter
Razor gen 3 in Mbrace mount
Deadair sandman S
Of the groups I was able to shoot I came up with a .38 moa 5 shot.