I have heard of some engine builders torquing each bolt 3 times. They would torque the bolt to spec and then back it off. Their thinking was that it would get rid of any burs and let the bolts torque to true values. Using lub also helps to get a true torque.One problem when torquing into aluminum is that the aluminum will migrate over time. At one time houses were wired using aluminum wire. It was found that after a few years the aluminum would migrate from under the screw connectors and cause high resistance connections which could heat up and cause fires.My hatsan has a steel spring type stop that goes behind the mount. I had removed this stop. The stop has now been installed again. I think that this stop will keep the mount from continuing to move back. I hope that this steel spring stop will allow the scope to be mounted to the rear as far as I want.
I'm onboard for a DT to Weaver adapter with a minimum of four tightening screws. I also recommend Weaver's quads for 1" scopes. I wish they were manufactured in 30mm. A heavy scope, in my mind, is a definite negative for springers and gp's with moderate to heavy recoil. Unfortunately, many offerings for spring/gp rated air rifle scopes are just that, heavy. I never really understood the "double recoil" and scope slippage. My springer scopes have slipped but only in one direction, to the rear. Same as my heavy recoil PB's if they slipped. I know for every action there is an opposite, equal reaction. In my springer's case it seems the last action was recoil to the rear, where the slipping scopes come to rest.
I gave up because every scope/springer moved even with lock pins and expensive mounts. I just shoot with iron sights (actually fiber optic).
Quote from: Frankly on January 23, 2017, 03:59:23 AMI gave up because every scope/springer moved even with lock pins and expensive mounts. I just shoot with iron sights (actually fiber optic).Well, I have a collection of magnum air rifles. I tapped a hole in the 1 pc mount and screwed in a 5mm bolt so that it protrudes 2 mm at the base. This protrusion fits into the stop hole in the receiver of the airgun. With that arrangement, my scopes have NEVER MOVED even after a few thousand rounds.
Quote from: havenofear on January 23, 2017, 06:45:34 AMQuote from: Frankly on January 23, 2017, 03:59:23 AMI gave up because every scope/springer moved even with lock pins and expensive mounts. I just shoot with iron sights (actually fiber optic).Well, I have a collection of magnum air rifles. I tapped a hole in the 1 pc mount and screwed in a 5mm bolt so that it protrudes 2 mm at the base. This protrusion fits into the stop hole in the receiver of the airgun. With that arrangement, my scopes have NEVER MOVED even after a few thousand rounds.Can you show us a picture?-Y