Bassett Machine   Dripping Springs, Texas

 

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Physical Address:

316 Mercer Street

 

Shipping Address:

P.O. Box 615

Dripping Springs, Texas 78620

 

 

 

 

 

TechNotes/Pics:

 

Installation Instructions

 

Shooting left or right, high or low? How to determine if the barrel is parallel to the action

 

Weaver Rings attachment:

   Standard mounts

   Picatinny Rail mount

 

Still workin' on this!

 

 

frequently asked questions

and Troubleshooting

 

Bassett has been around a very long time.  He has a lot of himself invested in this scope mount.  The information here is an effort to help with some of the issues our customers have come across (and come through).  If you need additional help, take pictures if you can and email us.  We'll see what we can do.

 

Known barrel/action issue

A few customers have reported that their shots were high/right or low/left.  After some investigating, we discovered that some rifles had a barrel that was not parallel to the action.  The Vietnam era Telescope/Auto-Ranging ART II Operation Manual even documents this issue and how to work around it with the ART II Scope.  (See page 3, B.4.)  Here is a document that we drew up to help you determine whether your barrel and action are parallel.

 

Want the scope directly over the barrel

When using the Standard High or Standard Low scope mount, you may find the scope is not directly over the barrel.  While is isn't essential that the scope be over the barrel, (and it's only off a fraction), if you don't want to allow for it, we've found that the Standard Low mount with high rings will place the scope directly over the barrel.

 

Using Loctite...or not

Bassett does not recommend using loctite on the mount bolt.  It is not necessary and wrecks the ability to remove the mount/scope unit when not needed.  Testing by the AMU at Fort Hood, Texas, in 1980, determined 22 inch-pounds to be sufficient to hold the mount with no shifting and yet not distort the rifle action or compromise accuracy.  If you want to put loctite on something, Bassett says using it on the ring screws wouldn't hurt...provided you didn't want the ability to mount different scopes on the mount.

 

Iron sights

Using the Standard High Scope Mount, a 65mm outside diameter objective bell will clear the hand-guard by 1.5mm.  This measurement was taken at 6.5 to 7 inches forward of the mounting bolt center with the recommended Weaver rings.  This allows for using the iron sights.

 

Using the Picatinny Rail High Scope Mount, a 50mm outside diameter objective bell will show a little in the iron sites but you can see enough to use them.  See picture.

 

Returning to Zero

Camp Perry Hi-power Masters and law enforcement personnel found that if reinstalled to the original mounting torque, it will return to battery within a half-minute of angle at 100 yards.  Consistency of weight and method installing is what produces the best accuracy.  Use the Installation Instructions.

 

 

 

 

 

 

             

2009 Bassett Machine

Physical Address:  316 Mercer Street 512.858.4441

Shipping Address: P.O. Box 615  Dripping Springs, Texas 78620