The original Benjamin scope mounts were heavily constructed of brass. There were two models, one for .22, the other for .177 guns. There is a set for sale on ebay right now mistakenly described as "blued steel". The new B272 mounts are aluminum and modeled after the old Sheridan mounts. Same profile in cross section, two short mounts instead of one long one.
I like this mount, turned backwards from the way Habanero has, so I get correct eye relief using a regular scope. May need taller rings, but it is easy to get used to.https://www.ebay.com/itm/SHERIDAN-INTERMOUNT-Sheridan-Products-Inc-Racine-Wis-Rifle-Scope-Mount/263522136069?hash=item3d5b24b005:g:dQwAAOSwgWBalcZu
It appears that one would definately apply some pressure to the tube. However, the fasteners go directly into the mount & not the barrel like the Mac1. I'm not so sure the same can be said about the SI.
The intermounts can bring a premium, too. I have seen those sell for up to $75, but about $40 is the average price,,, with a box = $50. You can replace the screws with allen head.
Quote from: Yng@hrt on March 25, 2018, 10:27:42 AMIt appears that one would definately apply some pressure to the tube. However, the fasteners go directly into the mount & not the barrel like the Mac1. I'm not so sure the same can be said about the SI.Marty, In the bottom photo is says Sheridan Inc. right on it... if that is what you mean by "SI"
The whole idea of the IA mount is to have a mount that does not wedge itself between the barrel & the air tube, thus causing barrel/air tube separation. As one can see, the IA mount clamps only around the barrel. With no air tube contact.
Wow Octavio now I'm confused. Maybe these 2 pix will explain it better...