Re: CZ 455 Precision Trainer and a Timney trigger
I have a CZ455 PT with the Manners stock. I put a Timney trigger in it, and a scope rail.
The rifle as delivered (Cheaper than Dirt) has no bedding. I bedded the whole action and an inch of the barrel. The action did "ring" in the stock when dry-firing with a snap-cap before bedding, now it does not. (Devcon 10110)
I installed the Timney trigger and it took a bit of work to get it right. A bit of stoning to the bottom of the firing pin, plus the sear to get it smooth with the right clearance. I adjusted the sear engagement just a touch, very little overall. Supposedly the Timney firing pin catch is left a few thou tall so it can be stoned to fit.
With the factory barrel, it shoots just under an inch at 100 yds with Wolf Match Target ammo. It is very susceptible to cant due to the ballistics, But you can watch the bullet trace as it flies to the target at 20x. It will be a great trainer! With practice it will be a consistent 3/4" gun.
I recommend it, but it took a bit of tweaking to get it the way I like it.