Not enough elevation with Williams receiver sight
-
- B Poster
- Posts: 53
- Joined: Sun Sep 20, 2009 6:53 pm
Not enough elevation with Williams receiver sight
I mounted a Williams FP-39 TK target knob receiver sight on my Marlin 39a and installed a Lyman 17AHB front globe sight with a .404 height. At 40 meters the rear sight is elevated as high as it will go. Any higher and the elevation screw comes out of the rear sight base. The 17AHB front sight is the shortest I can find. Is there a fix other than reinstalling the factory front sight?
-
- Master Poster
- Posts: 1084
- Joined: Wed Oct 25, 2006 3:04 pm
Re: Not enough elevation with Williams receiver sight
We had the same problem. I installed a different post in the front sight and added a long Williams elevation screw in the rear sight.
Just Be Nice
-
- B Poster
- Posts: 87
- Joined: Wed Nov 24, 2010 7:20 pm
Re: Not enough elevation with Williams receiver sight
We found a solution to this to be a dovetail cut between the two factory front sight screw holes. The short lyman globe and any receiver or tang sight work well with this setup. You can also use the factory rear with this set up and return the factory front sight ramp over the dovetail if you want to take it back to original configuration later. A gunny will charge a tiny bit to cut the dovetail.
T
T
- Merlin
- AAA Poster
- Posts: 771
- Joined: Wed Oct 22, 2008 6:56 pm
- Location: Friendswood, TX
Re: Not enough elevation with Williams receiver sight
I have the Lyman 17AHB front globe sight with a .404 height and the Williams FP-39 TK target knob receiver on my 1955 39A. Had to go with the long elevation screw to get on target after the Turkeys (Rams). With the long elevation screw I can go about a 1/2 turn lower than Chickens and go way above Rams before the screw is all the way out.
My buddy running the same setup had to cut the long elevation screws about 3 threads to get it down far enough to get on the Chickens... Still leaves plenty of threads for the Rams.
My buddy running the same setup had to cut the long elevation screws about 3 threads to get it down far enough to get on the Chickens... Still leaves plenty of threads for the Rams.
"Only God can judge me." Merlin
"Merlin..Your'e a rimfire whore." God
NRA Lever Action Silhouette - You get more clang for your bang with lever action silhouette.....
TSRA Lifer
NRA Patriot Patron Lifer
"Merlin..Your'e a rimfire whore." God
NRA Lever Action Silhouette - You get more clang for your bang with lever action silhouette.....
TSRA Lifer
NRA Patriot Patron Lifer
-
- B Poster
- Posts: 53
- Joined: Sun Sep 20, 2009 6:53 pm
Re: Not enough elevation with Williams receiver sight
Today at the range shooting silhouette with a friend, who is a pretty good gunsmith, I asked about taking off the front sight ramp and milling a dovetail and he agreed that would work. His only concern was altering the rifle from original. The 39a isn't a one of a kind collectable so is this really a concern as to affecting value for resale?
- Merlin
- AAA Poster
- Posts: 771
- Joined: Wed Oct 22, 2008 6:56 pm
- Location: Friendswood, TX
Re: Not enough elevation with Williams receiver sight
I am sure that would work if you don't mind cutting the gun and the expense...
Or...
Brownells
11525 FP TARGET KNOB LONG ELEV SCREW
962-157-240WB
Target Elevation Knob, Long
Mfr Part: 11525
$7.99
Or...
Brownells
11525 FP TARGET KNOB LONG ELEV SCREW
962-157-240WB
Target Elevation Knob, Long
Mfr Part: 11525
$7.99
"Only God can judge me." Merlin
"Merlin..Your'e a rimfire whore." God
NRA Lever Action Silhouette - You get more clang for your bang with lever action silhouette.....
TSRA Lifer
NRA Patriot Patron Lifer
"Merlin..Your'e a rimfire whore." God
NRA Lever Action Silhouette - You get more clang for your bang with lever action silhouette.....
TSRA Lifer
NRA Patriot Patron Lifer
-
- Master Poster
- Posts: 1084
- Joined: Wed Oct 25, 2006 3:04 pm
Re: Not enough elevation with Williams receiver sight
THE LONG ELEVATIOB SCREW WAS THE WAY TO GO FOR US .I DIDN'T WANT THE DOVETAIL CUT ON THE BARREL.
Just Be Nice
-
- AA Poster
- Posts: 268
- Joined: Sun Apr 19, 2015 8:53 pm
- Location: Chattanooga Tennessee
Re: Not enough elevation with Williams receiver sight
get the long target elev knob for the williams sight. that is what i did with the same setup.
-
- B Poster
- Posts: 57
- Joined: Fri Feb 21, 2014 12:05 pm
Re: Not enough elevation with Williams receiver sight
I agree with the long elev. screw, but be prepared to have to trim a few threads off to make it work right. Simple answer to your dilemma.
-
- B Poster
- Posts: 53
- Joined: Sun Sep 20, 2009 6:53 pm
Re: Not enough elevation with Williams receiver sight
Thanks for the advice and information. After thinking on it more I don't want to have a dovetail cut into the barrel.
- OldRanger
- AAA Poster
- Posts: 992
- Joined: Thu Jun 06, 2013 9:00 am
- Location: Missoula, MT
- Contact:
Re: Not enough elevation with Williams receiver sight
The long screw seemed awfully wobbly so I had the dovetail cut. Much more stable imo.
I buy all my guns from t-rex. He's a small arms dealer.
-
- AA Poster
- Posts: 427
- Joined: Tue Nov 22, 2005 3:01 pm
- Location: Little Rock, AR
Re: Not enough elevation with Williams receiver sight
There is another option if you happen to have a friend that can do a little mill work on a 17A globe sight. You start with the tallest 17A that Lyman makes. I believe it is the 17ATC, and is somewhere around 0.852" in height. You do need to determine what height you need the finished sight to be, which can be done using the original ramp and bead as a reference. Next, you measure your barrel diameter, it should be one of two sizes, then have the aforementioned friend mill the bottom side down to the correct height. Once that is done, you will need to drill a hole in the top of the sight large enough for a small screwdriver. Then drill the correct size hole in the bottom section of the sight and countersink to accept the correct screw for the ramp mounting screws. One screw is all that is needed to secure the sight, as the contour of the bottom will not allow it to move once tightened down.
-
- AAA Poster
- Posts: 626
- Joined: Sun Dec 02, 2007 6:59 am
- Location: Virginia
Re: Not enough elevation with Williams receiver sight
Lowering the the front sight has the advantage of lowering the sight line and effectively raising the comb.
My dovetail cut front sight Match 39a handles better than my original 39a with the front sight ramp mounted. Everybody may not like a stronger cheek position, I do.
Easy way to test before milling is remove the front ramp. Put two zip ties in its place opposing and wrapped together tight for a temporary front, I use a fly tying bobbin, tape works,just as well. Set the rear sight to suit the way you want your head position. Cut the front down with wire cutters to zero & see how it feels. Measure and fit the new lower front same height.
Boats
My dovetail cut front sight Match 39a handles better than my original 39a with the front sight ramp mounted. Everybody may not like a stronger cheek position, I do.
Easy way to test before milling is remove the front ramp. Put two zip ties in its place opposing and wrapped together tight for a temporary front, I use a fly tying bobbin, tape works,just as well. Set the rear sight to suit the way you want your head position. Cut the front down with wire cutters to zero & see how it feels. Measure and fit the new lower front same height.
Boats
- Merlin
- AAA Poster
- Posts: 771
- Joined: Wed Oct 22, 2008 6:56 pm
- Location: Friendswood, TX
Re: Not enough elevation with Williams receiver sight
I would suggest that you pay close attention to how low you can go with your front sight- with a rear receiver sight - and still get the rear low enough to sight the gun in at closer distances.
The lower the front sight the higher the POA. On MY rifle If the front is any lower than it is now I will not (I don't think) be able to get it on target much under 40 yards.
If you completely eliminate the factory front ramp - lowering the front sight at least .250 - it makes the "problem" much more apparent...
The lower the front sight the higher the POA. On MY rifle If the front is any lower than it is now I will not (I don't think) be able to get it on target much under 40 yards.
If you completely eliminate the factory front ramp - lowering the front sight at least .250 - it makes the "problem" much more apparent...
"Only God can judge me." Merlin
"Merlin..Your'e a rimfire whore." God
NRA Lever Action Silhouette - You get more clang for your bang with lever action silhouette.....
TSRA Lifer
NRA Patriot Patron Lifer
"Merlin..Your'e a rimfire whore." God
NRA Lever Action Silhouette - You get more clang for your bang with lever action silhouette.....
TSRA Lifer
NRA Patriot Patron Lifer
- OldRanger
- AAA Poster
- Posts: 992
- Joined: Thu Jun 06, 2013 9:00 am
- Location: Missoula, MT
- Contact:
Re: Not enough elevation with Williams receiver sight
Merlin, I would agree with your statement. With my front ramp gone I am only up a half dozen clicks at 40 meters. I certainly couldn't sight it in at 50 ft. But I made the change so that I could use this gun for this game, I don't really care about anything closer. I guess I would have to use kentucky windage.
I buy all my guns from t-rex. He's a small arms dealer.