Printable View
Greetings
When Lyman 48 sights were installed on the M1903 or 03-A4 were the mounting holes in the receiver blind holes or were they drilled through the receiver wall?
I'm considering an 03-A4 which had a Lyman installed and the mounting holes are drilled through. I do not know if this was standard procedure and if not, whether it is a safety concern.
The receiver still has WW2 Parkerizing so I asume it was not drawn and tempered to ease the drill and tap operation.
Thanks in advance
Jim
Jim - I'm not going to read into your post to much but I would suggest you approach this issue carefully.Quote:
Originally Posted by NMC_EXP
Let us know the Serial # of the Rifle and better yet a picture of the drilled mounting holes on the top and side of the receiver.
I'm not saying this because of a safty issue so much as preservation and curiousity. :cheers:
MikeQuote:
Originally Posted by Mike Haas
Thanks for the reply and note of caution.
This rifle is being offered as a standard 03-A3 which was gunsmith modified by the addition of Lyman front and rear sights. It is not being represented as an original Springfield Armory NRA Target or other Armory variant.
It has interest for me only as a shooter, not a collector.
I like the '03. I'd enjoy it more with better sights. In this case the damage is already done so the preservation issue is a moot point.
Regards
Jim
All 48 Lyman installations I have seen are drilled all the way through (I have 6 03's with 48's). There is no safety issue whatsoever.
Drilling a hole in a steel structure does not necessarily make it weaker. A steel bar with a small hole drilled through the center is stronger than the original solid bar.
Jim
I can't imagine a blind hole in the side of the rear bridge of an '03 action having much more than one thread of contact - you'd want all the contact area you could get in any case. Come to think of it, I don't think I've ever seen a blind hole for a receiver-mounted aperture sight.Quote:
Originally Posted by Jim Tarleton
i agree with most of whats benn said....
other then a hole drilled doesnt weaken...yes,, it does...
next time you drive down the street...look at the sign post..at the base, youll see some holes.
thats so when its hit, it breaks off, at that point..
now.
a hole with chamfered edges, {rolled over} will tend to add strength, but only on a sheet metal, or flat steel type application.
example.
look at a high end mountain bike, BMX bike roll cage in a race car,ect. the gussets may have holes to lighten them, and are usually chamfered..
however.
holes drilled in the area for a rear target sight on a 1903. Mauser, ect, wont weaken it enough to be a safety issue.
you may, have an issue with a case head failure if the bolt sets back the safety lug into that part of the receiver, that being said, if that happens to 6-48 holes wont make much diffferance..
and any one who drills extra holes in a 1903A4 shoot be kicked in the biskets.
Thanks for the info. This particular Lyman 48 has the slide with 105 minutes of elevation adjustment. I assume this is the "short" version?Quote:
Originally Posted by Jim Tarleton
Do you know how much windage adjustment this sight has?
I'm interested in this rifle for club H.P. matches and might give it a try at 1000 yds.
I like the old steel and walnut.
Regards
Jim
Quote:
Originally Posted by edlmann
I've never examined an '03 with a Lyman installed so I was not sure. My frame of reference is Rem 40X and Rem 37 smallbores. Those have blind mounting holes but the receiver walls are probably thicker than the '03.
Regards
Jim
Thanks for the reply.Quote:
Originally Posted by chuckindenver
I believe the the gun plumber who built this rifle assumed room temp some time ago.
The damage is done. Long as its safe, may as well punch some paper with it.
Regards
Jim
Remingtons have the hole through and through, from 722 to 700,
though they mount on the left side,
the 40x highpower is thicker in the reciever ring area then a standard 700 after 1975.
as for strength?? id say a Nickle steel 03 or A3 beats the 40x, 700, ect.
iv drill into all of them, and welded on all of them...
the strongest??by far the Smith Corona A3..they hardened them through and through.
Remington A3, 40x and 700,s were only surface hardend
pic is of a 68 vintage 700 im rebluing for a guy that left the rifle in a soft case. stored in his camper, with a leaky roof...yes, it was rusted to the case..
still to this day cant understand why anyone would store a firearm in a camper, let alone a cheap naugahide case... keeps my pockets full for sure.
Quote:
Originally Posted by chuckindenver
Good looking blue.
Have you ever polished and blued an 03A3?
Regards
Jim
a few, thats not blued yet,, just started removing the rust pits...it will be blue by next week.
i parkerize rifles that should be parked...i dont do many sporter 03,s anymore.
im more geared for restoring them back to milspec. weld them holes shut, make em look the way they should.
hunt with that Remington 700....its already drilled for the toys..and leave them old guns alone, lol.
Jim, I've looked at a few Lyman 48s and from what I've seen, the 48C came with 30,60,90, and 125 slides. I have a Lyman 48S, which also fits the 1903s, and the longest slide, which I have is a 105. Maybe Jim Tarleton, or someone else knowledgeable about these sights can help out.Quote:
Originally Posted by NMC_EXP
NMC EXP,
What you have I believe is a post WWII “long slide” Lyman 48. Per my memory the post-WWII Lyman 48 came in two sizes. To quote from the Lyman catalog:
Series 48 Receiver Sight with standard elevation slide (up to 600 Yard)…$12.50
Series 48 Receiver Sight with special long slide (up to 1000 yards) ……….$14.50
The standard slide was calibrated to 60 minutes while the long slide was calibrated to 105 minutes. I still have a “long slide” on a M1903.
I do not know how much windage adjustment the new 48 has but it’s more than plenty.
I believe that the pre-WWII 48’s were calibrated TO 125 minutes
Bill thanks for the info. I did not know there were so many versions out there.Quote:
Originally Posted by Dollar Bill
Regards
Jim
CosineQuote:
Originally Posted by Cosine26
Thanks....based on the angles of elevation table in Crossman's Book of the Springfield, I thought 105 minutes was enough for 1000 yds.
Regards
Jim
The one on the left is one of the prototype 48's the other the 48 made from 1911-18 sight.
https://www.milsurps.com/images/impo...mvc004x2-1.jpg
To continue the discussion on the “Long Slide (105 M) Lyman I shall relate the following information. I once belonged to a rifle club that had a range with 30 targets to 1000 yards which I shot almost weekly and one of the rifles I used regularly at that range was a M1903, with a standard issue 24 inch barrel and a” long slide” Lyman 48. I believe that the Lyman was originally calibrated for the M1903 with the 24 inch barrel. If the barrel is longer than 24 inches, the adjustments will be less than MOA and if the barrel is shorter than 24 inches , the adjustments will be greater than MOA. The ammo that I regularly used was either FA or LC 30M72 Match ammo or hand loads loaded to an equivalent velocity using the 30M72 bullet.
I initially sighted the rifle at 200 yards and set the sight to +2 elevation. The settings were:
200 yards= +2
300 Yards= +4 (come up from 2 to 3 =2 MOA)
600 yards = +11 (come up from 3 to 6 = 7 MOA
1000 yards= + 27/28 (come up from 600 to 1000 = 16/17 MOA)
So I think that the 105 minute calibration will provide plenty of elevation for 1000 Yard shooting. I never ran out of windage and if you have never shot on ranges in West Texas, New Mexico, or Arizona, you can’t imagine how the wind blows. I have made up to 6 minute changes from shot to shot.
Hopoe this provides some useful info.