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Hi folks. Hopefully someone can expand on this. I have this Williams sight and the base is marked 43. I contacted Williams and they stated they believe it was for a Winchester 43 but can’t confirm that as they don’t have any records that old. Sad. The hole spread to centers measures .845. Normally this would equate to fitting a 1” barrel diameter per William’s sight specifications, but 1” diameter does not quite fit the radius on the sight. It’s more like .950. On the Winchester 43 I know the factory did not tap the barrels, but they did tap some later receivers. Not sure if they just tapped the side or if they possibly tapped the top for a mount as well. I’m assuming the holes for the sight would have needed to be drilled and tapped by a gunsmith. Can anyone confirm or supply some info on if this sight was ever used on the 43 and if that hole spread is on a 43? Also, is the barrel outside diameter close to .950 where the rear sight would mount? Thanks for the help.
Hello John,
I do not know what rifle or firearm that sight was meant for, but I can assure you that it was not made for a Winchester Model 43.
The standard rear sight on a Winchester Model 43 was a No. 22-K sporting sight, and the left rear side of the receiver frame was drilled & tapped for an optional Lyman No. 57A receiver sight. After September 1950, the Model 43 receiver frame rings were was also drilled & tapped for scope blocks.
Bert
WACA Historian & Board of Director Member #6571L
Bert H. said
Hello John,I do not know what rifle or firearm that sight was meant for, but I can assure you that it was not made for a Winchester Model 43.
The standard rear sight on a Winchester Model 43 was a No. 22-K sporting sight, and the left rear side of the receiver frame was drilled & tapped for an optional Lyman No. 57A receiver sight. After September 1950, the Model 43 receiver frame rings were was also drilled & tapped for scope blocks.
Bert
Hi Bert, I appreciate the reply. I’m grasping at straws trying to figure out what model 43 these could be for. Do you know what the hole spread was for the mounting blocks on the post 50 models? Did Winchester have a standard hole spread for base mounting? Just curious as I have several of the old Unertl style blocks.
The pictures below show a factory drilled & tapped Model 43 receiver frame. The most common scope block I have found on the Model 43 is a Weaver no. 18.
The “43” you see marked on the sight you have most likely does not have anything to do with the “model” gun that it is intended for. Most sight manufacturers simply assigned numeric designations to their sights.
WACA Historian & Board of Director Member #6571L
John67 said Did Winchester have a standard hole spread for base mounting? Just curious as I have several of the old Unertl style blocks.
Front: .562”. Rear: .860″. Why call them “Unertl style”, when they preceded Unertl by 30+ yrs, & were invented by STEVENS?
Bert H. said
The pictures below show a factory drilled & tapped Model 43 receiver frame. The most common scope block I have found on the Model 43 is a Weaver no. 18.The “43” you see marked on the sight you have most likely does not have anything to do with the “model” gun that it is intended for. Most sight manufacturers simply assigned numeric designations to their sights.
Thank you Bert. I appreciate the information. No room for a sight on that. I appreciate the photos. John
clarence said
John67 said Did Winchester have a standard hole spread for base mounting? Just curious as I have several of the old Unertl style blocks.
Front: .562”. Rear: .860″. Why call them “Unertl style”, when they preceded Unertl by 30+ yrs, & were invented by STEVENS?
Thank you for the dimensions I appreciate it.
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