Ross MK II rear sight base removal question

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sequoia4100

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Hi,
I need to remove this rear sight base from a Ross MK II 5* barrel. I guess I need to drill those four pins to get that dog off?
Thanks

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Hello. First, of course, you remove the dovetailed leaf spring. If I remember correctly only the 2 pins that appear larger kiddy corner - one
on each end actually secure the possibly soft soldered base onto the barrel. The other 2 pins (appear smaller) secure the sight base to the
sleeve. In other words for manufacture the sight base is pinned to the sleeve with 2 small pins. Then the sleeve (now with base) is positioned onto the barrel by soft soldering then both sleeve and base are pinned onto the barrel by drilling a hole right through base and sleeve and barrel and then placing in the larger pins. Still I'm not sure about the soldering. I believe that the sight bases were acquired in England and the sight base had 4 divots for pin positioning. They also came in the white with spring and sight leaf yardage marked but not graduated (lines). I have one in my collection. I wonder where the sleeves came from. Remember its possible that the sleeves were not soldered in position that in fact the sleeve was placed in a mandril at the Ross factory and then drilled and pinned. Please let me know how
you make out. All earlier Ross rear sights were not soldered but pinned in position at the factory. It sounds rather naive but in fact it works. JOHN
 
Not long ago, I had to replace the sight base on my 5*. I received the rifle with the sleeve, but no base. The base was not soldered to the sleeve and the four pins appeared to be just alignment pins, although they may be a press fit. A little over-engineered, in my opinion. The sight is secured to the sleeve by the two top mounted screws. Once those screws are removed, you should be able to lift the base off. You might have to LIGHTLY pry at the rear. I think the sleeve is just soldered to the barrel.

Just out of curiosity, why are you removing the sight base?
 
Thanks for the info on removing the base. I might not pull it off after all. I don't want to muck it up; I've got another barreled action I can use. My real goal is to put this MK III Ross sight on a MK II that I have that has no sight. This sight is on a cut barreled sporter so don't call me bubba. This sight looks challenging to remove without damage. I normally go to Rossrifle.com for advice but that website seems to be dead. Where is Barry when you need him? The Ross Rifle Story has a pic of this sight but no info on mounting / dismounting.
This sight seems to be anchored with those two pins at the rear and a grub screw at the front. Has anyone ever taken one of these apart?

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Good call on not wanting to muck it up. It took the better part of two years to find a base for my 5*. I can't recall if it took more or less time to find a Sutherland sight. That Mk III sight certainly looks complicated and I wouldn't know where to start. The pictures suggest the rear ring is a separate piece and might be held in place by two screws. Then again, I may be barking up the wrong tree.
Best of luck and please keep us informed.
 
BINGO!
You need to read the Ross Rifle Handbook 1907. You should be able to find it on the milsurp knowledge base at milsurps.com. If not, do a web search. It can be downloaded in PDF format.
Refer to page 25 for a description of the Mk III sight and disassembly instructions. I think that will give you what you need.
Cheers
 
Hi sequoia. I was going to wait to see who was going to answer. So here it is. Just remove the set screw in the base slightly in front of the 2
coil springs and slide the assembly off towards the front. The only part left on the barrel will be the ring at the rear that is secured by the 2
pins. You will have to get underneath the washer like waist to pry out the pin with a tool. Try not to deform the ring as you will need it to
put on another barrel and the position of the graduated elevation lames is somewhat critical. If you intend to dismount the sight itself to pieces please get back to me. As this requires some finesse I suggest to leave it and clean with a toothbrush only rather than muck it up. For those of you who think they know everything (and there are many on this site) just try taking a Sutherland Mk II sight to pieces! JOHN
 
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