ARE YOU .... using these springs on the STOCK GUIDE ? ( As in a Very loose / sloppy fit )
OR ... on a nice snug fitted spring guide ?
Secondary vibrations or oscillation of the spring post shot creates a LOT of metal fatigue & a BIG REASON to use a snug fitted spring guide
This spring was a fight to slide on .. the others were darn tight , this last one was a pain but went ..
What's the term used " nail tight". Well no problun there
Matter of fact getting the broken spring off the guide is about a equal fight ..lol
Oh well it's st looks like my use and shot count abuse as the reason .
It's not like a high ticket item that's hurting the bilfold ( then spending a penny makes me cringe).
You figure if I'm able to shoot everyday and I shoot 10m, 20,30,50, 20 shots each + whatever can or steel that's easy a 80-100 shot day . Like I said a 500 count tin is about 10 days worth ..
So I'm just going with spring fatigue .
You can only bend back and forth a wire so much before it snaps in 2.
Put side of the spring life I guess I could not ask for a better , I could if selfish I guess . Consistent fps, groups well, smooth action , only noise it makes is the click breaking the barrel , the click of the piston on the trigger and the snap of closing the barrel ... Butter smooth.. till I get that one cock and hear that snap on the tube ..lol
Here's the seal face out of it .. looks as good as when new. . not a mark or scratch on it easy 8000-12000 shots on it if not more.
P.s..
I should add that guide tightness is also a preset "shragged" spring I set for 12 hrs +/- before install.