If it does what you want buy it. At 350 the action alone is well worth it along with the stock. It is unlikely that a hunting rifle has a shot out bore. Most guns that have above average recoil get shot very little. In fact most don't have the barrel fully broken in before they are sold the first time.
As far as the trigger. The trigger assembly is a 1 screw assembly that fits into a machined slot. The rifle wouldn't fire if assembled wrong. Slam fire or most other accidental discharge is a reason to have a competent smith look at it. Again at 350 buy it you will get your money back.
On the timney in this gun it seemed as though there was a take up screw and a lb/oz trigger adjustment screw both with a locking hex nut