How to install scope onto EAW-type mount

[truser00]

Hi,

Does anyone have any good tips on how to install scopes onto mounts with "wraparound" clamps you typically see on German EAW mounts? I don't know what they're called and can't think of a better way to describe them.

I was taught by a very good gunsmith to use parallel steel punches on either side and prise them open, so as not to scratch the finish on the scope tube. This sometimes leaves a mark on the screw hole so I was just wondering if there's a better way. Before I started doing this, I wrapped my scope with shim tape and pushed the top over the tube.

These Rusan ones below for SSG69s are made of steel and I can't imagine you'd be able to easily prise these open. I broke a punch when I last did it on an aluminium scope mount.

Thanks in advance.

 

[Rutland lad]

I had this recently.
I cut up a dog food bag (Chudleys - salmon to be accurate) made of reasonably thick plastic so it gave me a strip I could wraparound the scope. Then I eased the ring over that - gently, making sure it wasn’t tearing the plastic. Once it was on I just wriggled the plastic strip out. No damage.
Also worked when I found the rings were too high and I needed to get them off !

 

[Bavarianbrit]

I used some old feeler gauge strips around 2 thou thick between scope and mount for the sharp edges to glide over.

 

[HonestJohn]

Printer paper, then just pop them

 

[Donkey Basher]

There is a special tool for doing this - you need two, one for each side. Basically it fits into the screw hole, including the shoulder, & you then pull them together at the top to open the ring up.

If you don’t have the tool, then get two Allen keys that are a snug fit in the screw hole (4mm if the screws are M4 etc.) & you can do the same - you may leave a tell tale mark in the holes but you won’t be able to see it when the screws are installed.

These are the tools with part no. shown

 

[Stalker-of-the-deer]

Blaser rings are the same. Put some.paper around the tube and push on, once over they are loose to push back and forward to get your eye relief

 

[truser00]

There is a special tool for doing this - you need two, one for each side. Basically it fits into the screw hole, including the shoulder, & you then pull them together at the top to open the ring up.

If you don’t have the tool, then get two Allen keys that are a snug fit in the screw hole (4mm if the screws are M4 etc.) & you can do the same - you may leave a tell tale mark in the holes but you won’t be able to see it when the screws are installed.

These are the tools with part no. shown

View attachment 415494

Ah nice. Thanks.

Looks like using steel punches is the way to go then without buying those tools.

I tried the paper/tape methods but I felt it was a bit janky

 

[Dickie]

2 parallel punches of a snug fit in the holes won’t leave marks like Allen keys.

 

[Motard]

I do the easy way. Just wrapp one old piece of 35mm camera film around the body of the scope and press it in. once in place grab the film from a corner and it will slip out. No harm to the paint at all.Tube untouched. If or when I don't have the film on hand did "sew" e piece of string or metal wire into the threaded holes and force the two ends to open lightly usind both hands. But the you need a third hand for pressing the tube in. Believe me the film's trick is the way to go.

 

[Bavarianbrit]

Why EAW put the split below the 50-50 line beats me, it seems to be stupid engineering to me.

 

[Klenchblaize]

As an aside, I've found a 1" set of EAW rings will also accommodate a 26mm tube.

K

 

[Steff]

Why EAW put the split below the 50-50 line beats me, it seems to be stupid engineering to me.

Because they claim that it looks more elegant. They even praise themselves with having invented it. And yes, it is completely stupid.

 

[HonestJohn]

Because they claim that it looks more elegant. They even praise themselves with having invented it. And yes, it is completely stupid.

It does look more elegant, and 1” rings will take 26mm tubes

 

[Steff]

It does look more elegant, and 1” rings will take 26mm tubes

Which is more evidence of the technical nonsense of this design. The rigid lower half can only fit either 1‘‘ or 26mm.

 

[truser00]

It could be a feature carried over from older scope rings, back when a lot of them were made from sheet metal.

 

[Motard]

to me the horse iron design bear a spring factor that help holding firmly the tube scope. If this is not thrue I still like the design

 

[pg339]

These are a set of 1" with 11mm rimfire bases. They are sold by EAW as fitting 1"/26mm and they do fit both. For fitting they simply push on to the scope and then move freely, they do not damage or mark the tube. Warne 70/30 rimfire mounts work the same, just press onto the tube.

 

[Motard]

Bet marking the tube way depends from scope's manufacture external treatment. But generally speaking risk is higher with non emi-spherical designe.