If your 155pf loads worked good and the only thing you did was change the load, I would take a very good look at your load. You could buy some other ammo and try that and see if it makes a difference.
Don’t know what your skill level is but you could get a short block from Brazos custom and transfer most parts over to the new gun. https://www.1911store.com
I have had 2 SC open guns and 1 SC limited gun, they all have run 100%. They are built to the same standards as the pro series
only difference is you don’t get to pick options.
I have not had good luck with the MBF powder funnel. I use the Dillon power funnel and don't have any tipping. I also use the Dillon swager die in station 3
I had a friend custom make a mount for the RTS2 that moves the sight back .430 which puts the sight all the way to the back of the slide.
If you ever want to use sights again just remove the RTS2 and install the sights.
I clean mine after every stage, I keep and good dry cloth in the bag and when I clean the mags I also clean the lens with the cloth.
Been doing it like this for years with no ill effects.
25 yard zero. But I know where it shoots at 5 yards to 50 yards. With the 25 I never have to think about hold over or under at any distance
between 5 - 50 yards