3200 - Great Gun!
Still has the fastest lock time.
Hello!
If I am reading you correctly you are "pre-mounting" the gun and the rib on your gun is "smooth" , not "checkered" - correct?
Does this occur when mounting from "low gun" ?
I am trying to rule out any mounting problems , or any physical changes that may be causing this problem. Such as [forgive me, not trying to pry or be rude] weight gain/loss, changes in eyesight, any medications taken or changed.
Does the gun still shoot where pointed?
I know, sounds nuts, still if we shooters change physically, or eyes are changing or taking an anti-biotic , some anti-biotics cause one to be Photo-Sensitve, meaning Sunlight affects our eyes and skin more sensitive to UV rays.
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Most 3200s I have used , as do other ribs have a "finish". Some are a "lined" straight down the rib, others are checkered.
If this gun fits correctly, and the rib is worn, or smooth, I would have a Gunsmith do a really nice DEEP lined or checker and re-blue.
I mean this is really nice gun, and I would only let a qualified gunsmith touch it.
He will have other guns he can let you shoulder to see how various "finishes" look and share his experience and advice.
HTH
Steve