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  #1  
Old 02-04-2013, 09:59 AM
ohland ohland is offline
 
Join Date: Feb 2013
Posts: 6
Question Front sight block height for Redfield 63 on a Rem 540XR

Folks, the rifle in question is the Remington 540XR, with the big stock for position shooting.

The rear sight is the "scope height" Redfield 75 (Dog Leg). Looks nice, had the correct mounting base for the gun.

What is the height of the front sight block for use with the Redield 63? I found one reference to it being .460, and that is all I found. I can tell you that the present sight block of .236 is woefully short. If I was shooting at 250 yards, it would help me with high angle fire, just like a howitzer....

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  #2  
Old 02-04-2013, 03:06 PM
presidentg presidentg is offline
 
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Location: Northeast Ohio
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Perhaps this will help?
http://www.brownells.com/.aspx/lid=1...ght_Calculator
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  #3  
Old 02-04-2013, 04:48 PM
ohland ohland is offline
 
Join Date: Feb 2013
Posts: 6
Question .500?

Quote:
Originally Posted by presidentg View Post
Receiver diameter: 1.008 ish
Height of 75 sight set to zero: .400 ish
Diameter of 540XR barrel at muzzle: .804

What Brownells said: Front sight height of: .502 inches

Uh, the block that is on it now is .236 from top of barrel to top of block.
The Lyman 93 has it's center at .495 above the bottom surface that fits on top of the sight block. I am missing something....
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  #4  
Old 02-04-2013, 06:39 PM
wckz45 wckz45 is offline
 
Join Date: Dec 2009
Location: Virginia
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.460 is correct

Measured the two on my rifles and the one spare I have on hand.

http://www.gunpartscorp.com/Products/807220B.htm
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  #5  
Old 02-04-2013, 07:25 PM
ohland ohland is offline
 
Join Date: Feb 2013
Posts: 6
Default GPC base the correct height?

Quote:
Originally Posted by wckz45 View Post
.460 is correct

Measured the two on my rifles and the one spare I have on hand.

http://www.gunpartscorp.com/Products/807220B.htm
I found this earlier, was this the only height of the front base ever for the 540XR, or did you order it?
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  #6  
Old 02-04-2013, 08:17 PM
edlmann edlmann is offline
 
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Location: lovely downtown Central Florida
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From the '71 Redfield catalog:

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  #7  
Old 02-04-2013, 08:45 PM
ohland ohland is offline
 
Join Date: Feb 2013
Posts: 6
Default 714075 IS the dog leg Redfield No. 75

Quote:
Originally Posted by edlmann View Post
From the '71 Redfield catalog:

I was just about ready to ask, but then I looked at the box for the dog leg 75 I just got, Item # 714075 is a spot on match.

Rifle Make and Model
540X (comes w/.350" front base)

Rear Attaching Base to be Used
75-RT*

* "Receiver sight is 75-540X Item # 714075"

75RT base is:
#716003 75 Receiver Sight Attaching Base


Your ad shows .350 as the sight base that came with the 540X, and there is NO corresponding base shown in the right hand column. Bet that means no other base is necessary....

I'd have to say that there is a strong possibility that .350 is reasonable.

Last edited by ohland; 02-04-2013 at 08:52 PM.
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  #8  
Old 02-05-2013, 01:24 PM
ohland ohland is offline
 
Join Date: Feb 2013
Posts: 6
Post 540XR Front Base Parts from Gun Parts Corporation

I just ordered a base and two screws from GPC. I have no idea at this point of how high the block is. When the parts get in, I'll measure and report to you all.

807220B Front Sight Base, Remington 540XR, 540XR JR
https://www.gunpartscorp.com/Products/807220B.htm

814780D Front Sight Base Screw, Remington 540XR, 540XR JR
https://www.gunpartscorp.com/Products/814780D.htm

Disclaimer: I do not work for GPC, nor will I get any benefit for sharing this link.
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  #9  
Old 02-05-2013, 08:32 PM
wckz45 wckz45 is offline
 
Join Date: Dec 2009
Location: Virginia
Posts: 16
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I was worried about one of my rifles and decided I'd get a spare while they were available.

I did order the part listed in my previous post (it is my spare).

It is the exact same height as the two already installed on my rifles.

Both rifles also sport at dog leg 75 in the rear.
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  #10  
Old 02-12-2013, 06:08 PM
ohland ohland is offline
 
Join Date: Feb 2013
Posts: 6
Post 540XR Front sight block is .460 high

Quote:
Originally Posted by ohland View Post
807220B Front Sight Base, Remington 540XR, 540XR JR
https://www.gunpartscorp.com/Products/807220B.htm
814780D Front Sight Base Screw, Remington 540XR, 540XR JR
https://www.gunpartscorp.com/Products/814780D.htm
Got the parts in today. Front sight is .460, both screws fit perfectly into the tapped holes in the barrel.
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