I can't help you on Weaver pistol scopes but I can tell you about Weaver K series scopes on heavy recoil longarms. I have several K 2.5, K 3, and K 4 scopes on heavy recoil shotguns and muzzleloader rifles. They have held zero well over the years and this year as in the past brought home the venison. I would buy one for a handgun in a second.
best, nrb