I picked up a new 5" GP100 in .357 a couple of months ago. The stock trigger pull in DA and SA was just ok compared to my 686 and 586. I decided to change the springs and see what happens. The first thing off is I like to never got the assembly out to change the trigger spring. I had to tap the plunger with a punch to get it loose and then pry the assembly loose from the frame. I cleaned that mess up before reinserting the group. Relax, no damage was done.
I put the Wilson 10# Hammer and trigger springs in and achieved a very nice improvement. Off to the range I go to check this combo out. I took my reloads in .38 and .357 using Win SP primers in the .38. I used CCI SPM primers and Fed SR primers in my .357 loads. All of my reloads ignited and ran flawlessly. Several months ago I picked up some Creedmor .357 HPs that comes in the 20 round boxes. I tried to run a cylinder through and I got no ignition with very light strikes. I stuck those light strike rounds in my 686 and fired them off with no issues.
I suppose if I want to run the Creedmor ammo I would jump to the 12# spring. I did not compare but I'm gonna guess that those Creedmor rounds have the primer set deeper? I will see if I can compare and see a difference. I'll keep running my reloads and see where it goes. I really like the combo and it improves the trigger pulls nicely. I don't want to get into polishing and shims so I will leave her be and play with springs.
I put the Wilson 10# Hammer and trigger springs in and achieved a very nice improvement. Off to the range I go to check this combo out. I took my reloads in .38 and .357 using Win SP primers in the .38. I used CCI SPM primers and Fed SR primers in my .357 loads. All of my reloads ignited and ran flawlessly. Several months ago I picked up some Creedmor .357 HPs that comes in the 20 round boxes. I tried to run a cylinder through and I got no ignition with very light strikes. I stuck those light strike rounds in my 686 and fired them off with no issues.
I suppose if I want to run the Creedmor ammo I would jump to the 12# spring. I did not compare but I'm gonna guess that those Creedmor rounds have the primer set deeper? I will see if I can compare and see a difference. I'll keep running my reloads and see where it goes. I really like the combo and it improves the trigger pulls nicely. I don't want to get into polishing and shims so I will leave her be and play with springs.