6CM Build with Defiance AnTi X 75° Bolt

I put 180 rds through the 65prc build for my friend, 150 with original spring, 30 with 21# spring just to confirm velocity and ignition was the same. That 75° is a, well it's a beast in a not so good way......
That’s a bummer. I’ll have to ask defiance about it.
 
Thanks man! Picked up 200 of the 103 ELDX for now but have been interested in the 95 TMK as well. Seems like all of the current TMK, ELDM and ELDX are all killers.
pretty but expensive build! how much room in the mags with the 103s in there?
 
I put 180 rds through the 65prc build for my friend, 150 with original spring, 30 with 21# spring just to confirm velocity and ignition was the same. That 75° is a, well it's a beast in a not so good way......
What were the results of your test between the two springs? Did the 75° bolt loosen up any or does it still suck?
 
What were the results of your test between the two springs? Did the 75° bolt loosen up any or does it still suck?
75° defiance sucks honestly unless you install an 18" spring. 18# in 75° feels like my 90° defiance with a 24#. Ignition seemed the same. Only tested 20 rounds, but es/SD and mv was all in line with 21# VS 24#.

I've molested a few the impact 75° and they don't have near the increase of cocking forces that's defiance did. They may have swapped some springs around too, who knows.

There's a guy in Spokane WA area who will tune up the 75° defiances with an 18# spring, he flutes the firing pin, does some other vudoo and makes em feel pretty good. I had him do all the mods to my 90° classic, and it's butter smooth and easy opening/closing. Once we get some real cold weather here in MT I'll go out and send a bunch of rds with the 18# VS 24# and see if there are any differences in ignition. His name is Jim Konzal.
 
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