Experts, could this be the source of my point-of-impact shift?

I have an opinion that more-sophisticated airgunning equipment tends to often be more tempera'mental'. So today, with the return of warm weather and anxious to reunite with unsophisticated old loves, I took a few Co2 guns out of the mothballs. Too often neglected, I decided to first shoot some groups with my .22 MRodAir Plinkster equipped with a vintage, 7/8" tube Weaver 3-6X scope. From the very first shot it was obvious 'The Rig That Never Suffers POI Shifts' HAD... like FEET, not millimeters or inches!

Think I might have located the issue, but thought I'd seek second opinions from airgun experts. So do y'all think a broken in half turret saddle and busted-OFF elevation turret might have anything to do with the POI shift? And do you think (maybe) the plastic used in the 1960s might not be quite as durable as today's composites? Thanks in advance for your help. 

1556488679_505900765cc621e7b5a6c4.63455589_POI source.JPG



 
I dunno. I would suggest a Complete tear-down of the pistol,install all new seals,polish the CO2 tube, adjust the trigger,install target grips (cocobolo ONLY!),install an airstripper,buy a trigger shoe,port the valve,replace the valve poppet, swap out the poppet spring for a lighter unit...maybe heavier, fit a new tempered hammer spring,shim the transfer port,sharpen the CO2 piercing probe,buy all new pellets,swap out the bolt handle,turn on your computer,go to Pyramyd Air,buy a new scope.

Think that covers it. Give it a try and see how things work out. Hope this helps.

Mike
 
Thanks for all the expert advice, Gentlemen. This forum is SUCH a valuable resource!

Mike, I started with your suggestions. I've already removed the scope, and hope to complete all your suggestions before exiting this planet. Weird thing is, the scope fell off and whacked me cross the noggin as soon as I grabbed it. Is that normal?

NT, thanks for confirming my suspicions that the scope is fine. After the POI shift on my fine Chinese target rifle, I had to finish my saber-toothed bunny hunt with holy hand-grenades. I got a bunny... but my car's $10,000 custom paint job took quite a beating (after three misses with holy hand grenades the bunny took refuge under my Bugatti Chiron and that's when I got him!).

JE, I tried to check if the grips were tight; but couldn't find them under the rifle stock! WTF?

Stoti, any suggestions on getting a superglued scope cap off my thang? I've tried ice, fire, battery acid, and cayenne pepper to no avail... and am about to get desperate. BTW, the POI couldn't have been from a bad .22 pellet, as I have all faith in Sheridan pellets (5mm means .22, right?).

Thanks again, Guys. BTW, do y'all find your best problem-solving inspiration(s) in tequila, crack, hallucinogens, or a combination of all three? Maybe I just haven't found the right combination...




 
Expert no, wannabe yes! 5mm or 5.5mm, either should work, it's only .5mm difference, right? I thought the lands were for shooting the smaller pellets and the grooves were for the larger pellets. By the way, I quit tequila when I got married and stopped the mushrooms and crack when I had kids. I figured this out with no help at all.

Thanks ANGM, I needed that today, LMAO!
 
BTW, do y'all find your best problem-solving inspiration(s) in tequila, crack, hallucinogens, or a combination of all three? Maybe I just haven't found the right combination...



Ron, you're getting close with your ingredients, they are among the top ten for problem-solving inspirations.

A few more for the inspirational mix would be: 

No. 1: Large serving spoon (to shove your problem down somebody else's throat)

No. 2: Bang head against a brick wall (it feels so good when the pain resides!!)

No. 3: Buy more guns (they'll distract you from your problems)



I think this week I'll go with No. 3. Happy problem solving all around!! 😎

Matthias