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PetahW · October 31, 2012, 02:04 PM

Here's a 1966-vintage ad for the Bushnell product:

http://www.ebay.com/itm/Bushnell-Uni...ht_2044wt_1247

IIRC, the Tasco World Class product had the studs built into the bottom of the rings, with corresponding recepticles/holes in the bases.

The Bushnell system was different, as with the OP's mount, with the mount studs screwed directly into the receiver, and corresponding recepticles/holes in the bottom of the rings.

IMO, the Tasco was a workaround the Bushnell patent(s).

.

October 31, 2012, 02:04 PM	#6
PetahW Senior Member Join Date: September 19, 2008 Posts: 4,678	Here's a 1966-vintage ad for the Bushnell product: http://www.ebay.com/itm/Bushnell-Uni...ht_2044wt_1247 IIRC, the Tasco World Class product had the studs built into the bottom of the rings, with corresponding recepticles/holes in the bases. The Bushnell system was different, as with the OP's mount, with the mount studs screwed directly into the receiver, and corresponding recepticles/holes in the bottom of the rings. IMO, the Tasco was a workaround the Bushnell patent(s). . Last edited by PetahW; October 31, 2012 at 02:11 PM.