24hourcampfire.com
24hourcampfire.com
-->
Previous Thread
Next Thread
Print Thread
Hop To
Joined: Dec 2002
Posts: 13,099
D
Campfire Outfitter
OP Offline
Campfire Outfitter
D
Joined: Dec 2002
Posts: 13,099
I have a Springfield that one of my early rifle elk hunters brought me to check out before his hunt. He brought me a new scope to mount on it too. I tried to put it one but it is too short to fit between the rings(Nikon monarch) The mounts are the Bueller with the center split rings.

Anyone make a picatinny style base that will fit Springfields? The old style Burris scope that is on here is about as long as I can find.


NRA Benefactor Member

Those who live by the sword get shot by those who don't.

GB1

Joined: Aug 2006
Posts: 13,000
O
Campfire Outfitter
Offline
Campfire Outfitter
O
Joined: Aug 2006
Posts: 13,000
The problem with the old Springfields is that there were never standard dimensions for drilling and tapping; I have five Springfield sporters with a mix of Redfield, Buehler, Weaver and Leupold mounts and none share the exact same hole spacing.

Joined: Dec 2002
Posts: 13,099
D
Campfire Outfitter
OP Offline
Campfire Outfitter
D
Joined: Dec 2002
Posts: 13,099
Great! I guess I can measure the spacing, but the problem is that most scope bases give you an application, not dimensions!


NRA Benefactor Member

Those who live by the sword get shot by those who don't.

Joined: Aug 2006
Posts: 13,000
O
Campfire Outfitter
Offline
Campfire Outfitter
O
Joined: Aug 2006
Posts: 13,000
Worse comes to worst, you can buy a length of Picatinny rail from Brownells and cut it to length, then drill it to fit the existing holes.

Better option would be to sell the Nikon Monarch and buy a long tube Leupold M8 4x. That'd solve all your problems.

Joined: Dec 2002
Posts: 13,099
D
Campfire Outfitter
OP Offline
Campfire Outfitter
D
Joined: Dec 2002
Posts: 13,099
I just dug through my box of misc gun parts and found a Redfield JR base that is for a Springfield. It has considerably closer ring spacing so if the screw holes line up, I'm golden.


NRA Benefactor Member

Those who live by the sword get shot by those who don't.

IC B2

Joined: Dec 2002
Posts: 13,099
D
Campfire Outfitter
OP Offline
Campfire Outfitter
D
Joined: Dec 2002
Posts: 13,099
The base that I found in my Springfield box is marked "SP" but it is nowhere near a match for this receiver. It has a flat rear portion with a lateral groove machined through it. The Buehler base has a radiused rear portion that matches pretty closely. I am going to see if I can machine a new hole between the front screws to move the front ring rearward... mad

The base i have may be for an A3 and I may not have an A3- or the other way around?


NRA Benefactor Member

Those who live by the sword get shot by those who don't.

Joined: Mar 2005
Posts: 5,602
bcp Offline
Campfire Tracker
Offline
Campfire Tracker
Joined: Mar 2005
Posts: 5,602
Originally Posted by dennisinaz
It has a flat rear portion with a lateral groove machined through it.


That base would be for the Springfield 1903A3.

From:
http://www.milsurps.com/showthread.php?t=1584

[Linked Image]

---------------------------------------------
Since there were no factory drilled holes, the different manufacturers of scope bases made their own decision on hole spacing. You will probably have to find the right make of base to fit your holes.

Or mount two piece bases. The rear base can probably use the hole already there for one screw. The front base may or may not match the hole spacing. Different brands may have different spacing, for the same reason as the one piece bases.

I think the best method if nothing fits close enough is to find a base that fits the contours, then have the base holes welded closed and re-drilled to match the receiver. This can be done with "blank" bases without holes, if you can machine the bottom contour.

Bruce

Joined: Dec 2002
Posts: 13,099
D
Campfire Outfitter
OP Offline
Campfire Outfitter
D
Joined: Dec 2002
Posts: 13,099
Rats, I have a 1903 then. Not too many folks seem to be making bases for them!


NRA Benefactor Member

Those who live by the sword get shot by those who don't.

Joined: Dec 2002
Posts: 13,099
D
Campfire Outfitter
OP Offline
Campfire Outfitter
D
Joined: Dec 2002
Posts: 13,099
Here is my rear bridge:
[Linked Image]


Here is my front


[Linked Image]

front hole spacing is approx .860


I found this one from Midway but no way to know the spacing between the front holes and rear hole

Redfield JR base

Last edited by dennisinaz; 07/08/10.

NRA Benefactor Member

Those who live by the sword get shot by those who don't.

Joined: Mar 2005
Posts: 5,602
bcp Offline
Campfire Tracker
Offline
Campfire Tracker
Joined: Mar 2005
Posts: 5,602
Weaver recommends these bases for the 1903 Springfield:
http://www.weaveroptics.com/mountcharts/default.aspx

Rear 54
Front 55

Use the dimensions of the 54 and 55 bases to see if an 0.860 spacing base is close enough to use, maybe with a different height rear.
http://www.brownells.com/.aspx/lid=11214/learn/W_R__Weaver_Company_Mount_Base_Specifications

75 looks like it would work on your front, instead of a 55.

Once you get Weaver bases on it, you can use many different maker's extension rings to fit a short tube scope.

Bruce

IC B3

Joined: Dec 2002
Posts: 13,099
D
Campfire Outfitter
OP Offline
Campfire Outfitter
D
Joined: Dec 2002
Posts: 13,099
A Weaver 54 has two bloody holes, this rifle only has one! I can't believe that nobody makes a 20 MOA picatinny rail for this sucker!


NRA Benefactor Member

Those who live by the sword get shot by those who don't.

Joined: Mar 2005
Posts: 5,602
bcp Offline
Campfire Tracker
Offline
Campfire Tracker
Joined: Mar 2005
Posts: 5,602
Somebody might, but it probably won't match your holes. There are no standard hole spacings.

This might work. No holes needed. The front mounts to a ring around the barrel in front of the receiver. I can't tell how it mounts to the rear without a hole.
http://www.cheaperthandirt.com/SKM1470-34.html

----------

It is easy to drill and tap the second hole needed for the rear Weaver base. Screw it down with the single hole, make sure it is aligned with the front base, and use the rear hole in the base as a guide for a transfer punch or a tight-fitting bit to make a dimple for the tap drill to start in.

Bruce

Joined: Dec 2002
Posts: 13,099
D
Campfire Outfitter
OP Offline
Campfire Outfitter
D
Joined: Dec 2002
Posts: 13,099
Those are for non-sporterized rifles. I can always drill another hole I guess.


NRA Benefactor Member

Those who live by the sword get shot by those who don't.


Moderated by  RickBin 

Link Copied to Clipboard
AX24

629 members (007FJ, 10ring1, 17CalFan, 10gaugemag, 1234, 10gaugeman, 68 invisible), 2,042 guests, and 1,200 robots.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums81
Topics1,191,880
Posts18,479,095
Members73,947
Most Online11,491
Jul 7th, 2023


 


Fish & Game Departments | Solunar Tables | Mission Statement | Privacy Policy | Contact Us | DMCA
Hunting | Fishing | Camping | Backpacking | Reloading | Campfire Forums | Gear Shop
Copyright © 2000-2024 24hourcampfire.com, Inc. All Rights Reserved.



Powered by UBB.threads™ PHP Forum Software 7.7.5
(Release build 20201027)
Responsive Width:

PHP: 7.3.33 Page Time: 0.080s Queries: 14 (0.005s) Memory: 0.8481 MB (Peak: 0.9443 MB) Data Comp: Zlib Server Time: 2024-04-30 13:53:39 UTC
Valid HTML 5 and Valid CSS