The finish on the "new" scopes are slippery. It's tough to get one to hold on a springer.
The surface is a bunch of beads that only offer contact at the apex of each bead. It makes them very scratch resistant but hard to hold without slipping.
A quick spin in 400 grit paper ruins the finish on the scope but makes them hold tight. No overtorquing needed. It's ugly but it works great.
I use hot pink nail polish. It fills the "valleys" in the finish and allows full contact on the rings. CA glue or epoxy works great too. Wipes right off with acetone. There are plenty of threadlocking compounds that will work great too. With the nitride (or similar) finishes you really need some stickum on a springer or you need to overtorque the screws.
Lacquer won't dry without air. When I use hot pink nail polish I let it dry almost completely before assembly. It works dandy. CA glue too. Epoxy works great and cures without air. Anything to fill the profile on the "new matte finishes". A polished finish on a scope won't need a darn thing. It will hold tight. Blued steel scopes too. Just the "new matte finish" on aluminum scopes. It's slippery as heck and won't hold on a springer without some help.
I used a shim cut from a latex rubber therapy band. It's about .008 when compressed and worked perfectly. Held tight. Latex rubber decomposes and won't last forever. But it makes a great shim and won't damage the scope. It's cheap and easy too.
My buddy used cat food cans. The shims still had cat food stuck to them. He shot 6 months on "little friskies" shims glued with nail polish on a hard kicking Hatsan. They worked fine. The nail polish and cat food wiped right off with acetone when he changed scopes. We put the same shims under the new scope a few weeks ago (minus the tuna suprise) and he's going strong.
It's not rocket science once you understand how the "new" aluminum finishes behave. They just need some help finding friction with the scope rings. A little viscosity is all they need to hold tight on a spring gun.
If you don't mind the appearance just wrap a piece of 400 grit paper around the scope where the rings bind and give it a twist. Problem solved. It will hold great with minimal torque on the rings. Same with the shims. All it needs is a little profile to give the surface some mechanical "tooth" to lock together. A little crosshatch profile on the inside of parkerized rings will help too. Add a drop of lacquer from your favorite color pallette and your scope will hang tight no matter how hard your Hatsan jumps when you jerk the trigger.
The surface is a bunch of beads that only offer contact at the apex of each bead. It makes them very scratch resistant but hard to hold without slipping.
A quick spin in 400 grit paper ruins the finish on the scope but makes them hold tight. No overtorquing needed. It's ugly but it works great.
I use hot pink nail polish. It fills the "valleys" in the finish and allows full contact on the rings. CA glue or epoxy works great too. Wipes right off with acetone. There are plenty of threadlocking compounds that will work great too. With the nitride (or similar) finishes you really need some stickum on a springer or you need to overtorque the screws.
Lacquer won't dry without air. When I use hot pink nail polish I let it dry almost completely before assembly. It works dandy. CA glue too. Epoxy works great and cures without air. Anything to fill the profile on the "new matte finishes". A polished finish on a scope won't need a darn thing. It will hold tight. Blued steel scopes too. Just the "new matte finish" on aluminum scopes. It's slippery as heck and won't hold on a springer without some help.
I used a shim cut from a latex rubber therapy band. It's about .008 when compressed and worked perfectly. Held tight. Latex rubber decomposes and won't last forever. But it makes a great shim and won't damage the scope. It's cheap and easy too.
My buddy used cat food cans. The shims still had cat food stuck to them. He shot 6 months on "little friskies" shims glued with nail polish on a hard kicking Hatsan. They worked fine. The nail polish and cat food wiped right off with acetone when he changed scopes. We put the same shims under the new scope a few weeks ago (minus the tuna suprise) and he's going strong.
It's not rocket science once you understand how the "new" aluminum finishes behave. They just need some help finding friction with the scope rings. A little viscosity is all they need to hold tight on a spring gun.
If you don't mind the appearance just wrap a piece of 400 grit paper around the scope where the rings bind and give it a twist. Problem solved. It will hold great with minimal torque on the rings. Same with the shims. All it needs is a little profile to give the surface some mechanical "tooth" to lock together. A little crosshatch profile on the inside of parkerized rings will help too. Add a drop of lacquer from your favorite color pallette and your scope will hang tight no matter how hard your Hatsan jumps when you jerk the trigger.
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