This Rifle won't Shoot! Diagnosing the issue(s).

[TheCZKid]

The crown looks good

 

[TheCZKid]

Oh freakin A
is that of the OP's rifle stock?
If so
1) try relieving the bedding in front and on the sides and bottom of the recoil lug
That can be a problem issue / Dremel is your friend unless you have a Mill
Only the rear of the lug should touch
Way back in the beginning, nobody relieved around the recoil lug, because they didn't know better.
Including big name proffesionals that touted the best of the best bedding jobs.
That aspect got figured out later
2) Make sure the bedding in the chamber area does not put upward force on the barrel when clamped in
(For example, lets say it was rebarreled once, and they never redid the bedding where it touches the barrel)
(Relieve the bedding in the chamber area to fully free float the barrel)
Then see how it shoots
if the action was bedded right it should not move much upward or downward when you torque the action screws down.

What kind of stock do you think it is? I don't know who OP's rifle stock is
it apparently has an aluminum bedding block in it. One interesting thing is, the trigger guard is molded into the stock, it won't come off, and it's relieved slightly inside the rear part of the loop, so the trigger doesn't hit it.

I'll be Dremeling to relieve the area below and in front and sides of the recoil lug, sound like everyone is in agreement it's needed.

 

[ELR LVR]

It could also have been specially purpose built just to shoot these
you might try these too

https://www.hornady.com/bullets/rifle/17-cal-172-15-5-gr-ntx#!/

 

[TheCZKid]

It could also have been specially purpose built just to shoot these
you might try these too

https://www.hornady.com/bullets/rifle/17-cal-172-15-5-gr-ntx#!/

Hmmm, Hornady 15.5 copper bullets. I hadn't even considered that possibility, but it might be a solution to a problem. I don't think the gunsmith had that in mind, but it might work. I have some on hand, and will give them a try.

 

[ELR LVR]

What kind of stock do you think it is? I don't know who OP's rifle stock is

I'll be Dremeling to relieve the area below and in front and sides of the recoil lug, sound like everyone is in agreement it's needed.

Hs Precision / Bell Carlson maybe? Looks like a Remmy Copy
I use a Flat Carbide for the flat surfaces and a round carbide ball for the corners when doing this with a dremel

 

[TheCZKid]

Hs Precision / Bell Carlson maybe? Looks like a Remmy Copy
I use a Flat Carbide for the flat surfaces and a round carbide ball for the corners when doing this with a dremel

I think I'll be taking a trip to buy some bits, as I don't have options for my Dremel that will work right. Perhaps Harbor Freight will, or Home Depot.

 

[ELR LVR]

I think I'll be taking a trip to buy some bits, as I don't have options for my Dremel that will work right. Perhaps Harbor Freight will, or Home Depot.

Good idea
I know my local Walmart and Lowes also carry dremel bits