My current 52 D set up.
Redfield International rear and Redfield International front marked 100.
I believe the International has 1/4MOA adjustments.
The International front takes Redfield inserts and the larger inserts sold by Lee Shaver of which I have an aperture installed. I tried the other Lee Shaver inserts and just keep going back to a plain aperture as the best for me.
-Richard

 

What I'm looking for. Recently acquired a Mdl 75 --never could afford a 52--😭 but I would like Redfield Olympics for the 75. Help appreciated. I shot the same rifle @ Camp Perry 3 position small bore more years than I can remember. Thanks for any help. I am a combat veteran and an NRA Benefactor Member. Jonathan

 

I posted a thread asking for information a few months ago. Redfield sight information ? What are you using ?? | Rimfire Central Firearm Forum Did get a chart posted.

Also posted a thread on finding Redfield sight for my 52 B. Found Redfield sights for my 52B | Rimfire Central Firearm Forum

Copied from that thread.
Post#1
I bought the gun three months ago with no sights, just scope blocks and a dovetail filler in place of the front sight. I put an EGW mount on with a Weaver V-24 to get it shooting and see how it shot.



I then started gathering information and searching for sights that would fit it. Through a few posts on here I started conversing with @LarDaBear and he gave contact information for a gentleman in Denver by the name of Phil Scholl. Phil worked for Redfield for 27 years and works on all brands of sights , has a lot of parts and is still gathering.

I contacted Phil and he took all the mystery out of what parts would work best for me, and what height dovetail I needed for my front. He hooked me up with a Redfield International for the receiver, An Olympic globe for the front with a set of inserts, and a .375 double dovetail block to mount it.
I got a W-490 mounting plate for the International from Steve Earle Products.

When I received them last week I mounted them, setting them for a best guess for a 25 yard zero. Put up a target with a 1 5/8" bull and a 3/4" center and fired a shot hoping to be on paper. I fired six shots total, making two adjustments, and couldn't be happier.
Attachments

• 
  IMG_20230408_141550803.jpg
  776.9 KBViews: 57
• 
  IMG_20230620_151109192.jpg
  689.5 KBViews: 31
• 
  IMG_20230626_105130847.jpg
  990.8 KBViews: 38
• 
  IMG_20230626_105621174.jpg
  890 KBViews: 40
• 
  IMG_20230621_151625189.jpg
  563 KBViews: 41
• 
  4.jpg
  210.8 KBViews: 31

Post #2
I've been tying different inserts in the front ( Olympic Globe ) with a little change. It all depends on the size of the bull.

It had a .080 aperture in the International ( receiver sight ), and I just got a .040 and .050 from Apertures N More to try a few days ago.
I put the .040 in and tried one of the A-23-5's for the 50 yard Iron sight matches today.

It's not a collector, but it sure does make me smile.

 

Redfield Olympic Front and Rear.
What I grew up with and probably the most well known Redfield Micrometer Sight(s).
1/4MOA adjustments, looks like the International Front and Rear.
Supposed to have a spring that does not allow for slack in adjustment.
I have never tested an Olympic against an International.
Either have worked well for me over the years but I always watch for and expect slack.

 

Redfield Palma Rear Sight.
Like the International with springs for adjustments

but with a different thread for rear apertures.
I assume because the name, the Palma was made for Big Bore Competition.

 

I’m kind of got a thing for Redfield sights and have everything thing except the extension for the olympic globe pictured in the above posts. My groups are actually substantially tighter with peeps than with glass. I find shooting them so enjoyable they are about all I shoot. I find the diameter of the globe aperture far more important than the rear.

 

Trying not to derail the purpose of the thread, as I have little to contribute. I am left handed, and found a REM left hand long action, with screw holes on the right side, implying left hand mounts and sights?

I have seen little for left hand aperture sights other than modern Anschutz etc. has anyone seen left handed rear sights?

 

I've got an X-tube and like it. Recommend you try one out if you get the chance.

 

Redfield MK8.
As the name implies 1/8MOA clicks.
I’m not sure whether it’s use was for more accurate adjustments at 50ft Small Bore or for Big Bore shooters at 100 yds and beyond?

 

Sam Gates Rear Sight.
#653
Good info on the Sam Gates.
The one I have should be 1/4MOA adjustments as it is not marked anything different.

Best Rear Sight - TargetTalk

 

Redfield Big Bore with inserts.
I assume the Big Bore front is lower and reduced weight and size for recoil?

 

Inserts for Redfield Front Sights.
I know that not any insert will fit any Redfield Front.
Lee Shaver sells two different sizes of inserts.
One size for the smaller Redfield Fronts and one size for the Olympic type.
Order direct from Lee Shaver as Brownells only has the smaller and don’t tell you that.
I gave my smaller set to a fellow that has a Rem RangeMaster and the appropriate front sight.
When I started shooting competitively in High School, our Rem or Win rifles could be either Post or aperture. I learned to shoot both but much prefer the aperture front.
I have tried some of the other Shaver inserts but don’t like them.
Neither do I use the or like the clear inserts.
Does anyone have information on the usage of the clear inserts and the conditions they were made for?
-Richard

 

I’m kind of got a thing for Redfield sights and have everything thing except the extension for the olympic globe pictured in the above posts. My groups are actually substantially tighter with peeps than with glass. I find shooting them so enjoyable they are about all I shoot. I find the diameter of the globe aperture far more important than the rear.

There is a lack of knowledge that can be accessed readily on the different Redfield Micrometer Sights
Both front and rear.
Since acquiring my second 52D, Which came with a Redfield Olympic rear but Lyman front, I acquired a Redfield Olympic front to match.
I have since acquired an International front marked 100, which is lower than a normal front which makes for a-few clicks when going between 50yds and 100 yds by just changing the front sight.
I would like to collect information about each type of Refield Micrometer Rear and front Sight in this thread for others to peruse and learn.
Information about inserts, both Redfield and lee Shaver et al is welcome also.
Over the next few days, I will be posting pictures of my sights with what information I have in hand.
Please feel free to ad or correct information.
Thank you.-Richard View attachment 405975 View attachment 405979
View attachment 405978

Very late produced Redfield Olympic rear sights aperture threads were changed to the same diameter thread pitch as the Bard apertures. Adapters for regular Redfield International and Olympic receiver sight apertures were available.
I know because I just received two late production Olympic sights and got the adapters from Phil Scholl.
Phil Scholl was a 27 year employee at Redfield and is probably THE most knowledgable person concerning Redfield products.
Also Phil has been experimenting with converting Palma's to 1/8 MOA.
He can also CONVERT YOUR EXISTING INTERNATIONAL INTO A 1/8 MOA MK8.
He has also fixed the problems with the Sure X apertures which are renowned for the iris openings to not lock into the center of the apertures.
He also repairs and correctly adjusts Redfield 75, Olympic, International and Palma sights and is currently assembling Palma sights from new old stock parts.
IF YOU NEED SOME HELP FROM PHIL PLEASE MESSAGE ME.
Phil is a true gentleman, probably too darn nice for his own good, and I'm proud to call him a friend, he does not have a computer and does not like to text so I act as a go between for Phil as I'm a little bit more tech savvy than he is.
He also coached handicapped shooters and makes shooting appliances(?) for them at no cost out of his own pocket.
Also Phil is always looking for Redfield peep sight parts or damaged peep sights so he can keep helping people get their Redfield sights repaired.
Sorry for the caps, sometimes when I type I accidentally hit the caps button when I type the letter a, I have been diagnosed with peripheral neuropathy lately among other things.

BTW, the International small bore sights were available in both 50 yard and 100 yard versions to save on having to make so many click adjustments when changing the range sighting, later Redfield went to the stepped front sight mounts so you could just move the front sight from the higher or lower step and you'd only need one front sight instead or the 50 and 100 yard front sights. The stepped mounts were available in different heights.

 

Does Phil have any company literature or documentation at all?
I mean anything at all beyond the sales brochures like those posted in the initial post here.

I've been starting to search for exploded parts diagrams, sight use instructions, ANY technical info you could make copies or scans of?

I see a fair amount of people looking , but not finding, this type of info.

 

Need some help here, recently acquired a Mdl 75 that I'd like to put Redfield Olympic sights on. Same model I shot at Camp Perry 3 position small bore more years than I wanna think about. I am a combat veteran and an NRA Benefactor member. Help appreciate. Thanks!

 

Message me with your phone number

 

What I'm looking for. Recently acquired a Mdl 75 --never could afford a 52--😭 but I would like Redfield Olympics for the 75. Help appreciated. I shot the same rifle @ Camp Perry 3 position small bore more years than I can remember. Thanks for any help. I am a combat veteran and an NRA Benefactor Member. Jonathan

Old post and I imagine you found them.
If not, the Olympic can often be found on Ebay, and a mount for putting an Olympic or International on the 75 can be found here. redfield (steveearleproducts.com) They are a little different to deal with, emailing first, then sending check, then item is shipped. But I've jumped through the hoops twice and got items that can't be found else ware.

Message me with your phone number

He doesn't have 30 posts and can't use the PM system.

Thanks.




Like parts diagrams, fine tuning of the actual knobs to zero, production variations...

The knobs can be removed and the scale/numbers cleaned as I described in your other thread.

They cannot be reset to zero on the Redfield 75. There is a dimple in the shaft that the set screw must align with and bottom into. If they aren't lined up the knob won't hold tight against the sight and you will loose the tiny ball bearing between the knob and sight.

 

So I had some questions about zero on my gun, the total adjustment available to me and how far I could shoot with the sites I have.

Ran a test to figure some of it out. I know I've seen others ask about 'click' values or the sight marks values.

Shooting S&B Club with a MV of 1145 according to my chronograph.
Made a tall target and started at my zero from last 50 yard.session.

Above- shoot 5, adjust up 36 clicks, repeat till out of adjustment. 36 clicks averaged out to 4.15" each adjustment, though there was differences in the first 2...slop in sight perhaps?



Next picture.
Once I ran out of adjustment I reset scale marker to reflect the 60 MOA value. Put a fresh target up, ran sight back to its zero mark and shot 3 rounds, tried 2 other brands at this same setting also. All were within an inch vertical and 7 " below my POA.

I then proceeded to run sight up according to the scale 15MOA and shoot 3 rounds, repeat until out of adjustment at 60MOA.
Each 15 MOA produced 7" of elevation gain.

Again, ran sight down to the 15 mark, reset zero and confirmed it on another target.

So it seems I'm missing the bottom 15 MOA because of front sight height? A lower barrel block would solve that, yes?

Crunched some numbers, ran calculator and find gun is good to 300 yards as is.
Set target at 225 yards adjusted sight and proofed everything out.

Had a bow target that was perfect for this, about a 18" circle.

What does all this mean?
With a 32" site radius, shooting match speed ammo in this gun, each click of the elevation dial equals .117", thats about 10% off from true MOA.
i sat down and wrote out a scale for clicks and scale mark values i can use at distance, but like with any of this rimfire stuff, evry day is a bit different and hard rules dont always apply.