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Front sight

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Charles View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Charles Quote  Post ReplyReply Direct Link To This Post Topic: Front sight
    Posted: Dec 06 2017 at 2:29pm
Anyone know how one would raise the front sight to lower the point of impact, say 2 " at 25 yards? I believe there was a formula for grinding a sight down to raise the point of impact as was necessary after manufacture.
Charles
Charles
Co B 1st Batl.115 Inf. Reg.
29th. Divi.
4.2 Heavy Mortar Co Retired
Life member NRA

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floydthecat View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote floydthecat Quote  Post ReplyReply Direct Link To This Post Posted: Dec 06 2017 at 3:45pm
If the rear is not already set at the lowest point (assuming it's adjustable), U could just lower it and see if it will pull POI down.

Your other choice would be to build-up the post with something like a JB Weld or spring for a new-sight. They can be removed without the tool.
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New2brass View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote New2brass Quote  Post ReplyReply Direct Link To This Post Posted: Dec 06 2017 at 11:33pm
I think the problem is that the carbine was never sighted in for close range. The bullet trajectory is rising at that point.
 
I believe some factory ranges had a way to compensate when sighting in new carbines.
 
IP used numbered sights  with each step being .015 of an inch. longest blade was .795 measured from top of blade to center of bore.
 
I believe one of the manuals gives the formula to correct POI however it may be different at 25 yards.
 
 
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Uncle Mike View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Uncle Mike Quote  Post ReplyReply Direct Link To This Post Posted: Dec 07 2017 at 12:06am
Hi, I had the same problem and I replaced the front sight. I got a GI sight online but had to specify a long uncut sight. I got one from Fulton Armory and had to send the first one back.  I complained and the owner sent me a replacement. This was 10 years ago so a GI made be hard to find. Bill Ricca has them listed but I believe he's having problems with his web site; I would call, regards, Mike
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Ghostman View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ghostman Quote  Post ReplyReply Direct Link To This Post Posted: Dec 08 2017 at 6:40pm
I just ordered and received 2 each, "N" marked front sights from an Ebay vendor, "nenel3" in France. This was the 2nd time that I have ordered from him. My dealings with him have been overall good. Sometimes he doesn't answer questions but his parts have been original and as described even though the picture on the auction was of "R" marked sights.
 
Michael
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4th ID Mech, 11th ACR, 25th ID light, 82nd Abn, 101st Abn/AAsslt, 160th SOAR
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Charles View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Charles Quote  Post ReplyReply Direct Link To This Post Posted: Dec 08 2017 at 9:48pm
Not wanting to replace the sight,I fashioned a piece of metal in the shape of a U that fits snugly over the blade that will bring the muzzle down to hopefully the amount I need. I will be going to the range Monday and will post the results.
Charles
Co B 1st Batl.115 Inf. Reg.
29th. Divi.
4.2 Heavy Mortar Co Retired
Life member NRA

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