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Discussion Starter · #1 ·
I have a rifle with a Lyman 17A front sight. I need a larger aperture, the one I have is a 2.8 and is too small for 50 yard shooting, I need a 3.0 and/or a 3.2. Have searched all the logical internet sites, they either dont stock them or are out of stock. It has to be an aftermarket item, Lyman only made inserts up to 2.8. Any help appreciated.
 

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Discussion Starter · #5 ·
Upon further reflection, I remembered that 1/8 " equals .125 which equals 3.175 mm. Perfect. Got out my 1/8 drill bit and drill, opened up the aperture to 3.175 mm , reinstalled aperture and anxious to get back to the range. TOhe original 2.8 was semisortof OK but not quite enough white around the bullseye, kept fading out. We'll see.
 
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