Crosman 1400 Scope Mounts

Hello ladies & gents, new to the site but an old hand at stuff that goes BANG as well as POOF LOL.

Quick resume of who the hell I am ;):

63 yr old Canadian HVAC contractor living in Quebec Canada
Own a 2nd home in Cape Coral FL (mentioned 'cause it makes shipping firearm-related stuff much easier, rather than trying to ship to Canada)
Have owned firearms since the second I moved out of my anti-gun parents' home at 23
Have an obscenely large collection of firearms, handguns and rifles/shotties

Looking for a mount for my doveless (not loveless) 1400. I've had this rifle for the last 50 yrs and it still packs a punch. But my 63 yr old eyes ain't what they used to be...
Ordered and received a set of mounts from AGS (Crosman 459MT Mounts, CR-459MTC) here in Canuckistan. Got them bolted to the barrel, but the mounts move with a bit of effort, so no good.

Options are;

- Find a set of bolt-on barrelclamp-style mounts specifically for the 1400
- Try to get the above AGS mounts to grip tightly by Dremeling horizontal grooves into the inside of the mounts where it grips the barrel for more "bite"
- Resign myself to shooting open sights. I'm not half bad even with these old eyes, but definitely not my first choice

Suggestions anyone? I've already done a search and can only find texts on machining dovetails into the barrel.

Thanks in advance for any help..
 
Thanks so much for the quick response.

Coincidentally, I had also sent an email out to BuckRail at the same time as I posted this here. He also got back to me in record time about 60 minutes ago. He asked for the barrel diameter (which is 14.32mm or .56"), stated he might have something that'd fit.

So now we wait.....and yes, definitely will post results.