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The Range
Rimfire Weapons
taller front sight
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<blockquote data-quote="mr ed" data-source="post: 3712093" data-attributes="member: 6777"><p>got this from midway Q&A</p><p>Q What front sight will work with this rear sight ? The current front sight is to low and at the lowest setting of the rear sight it shoots 2 ft high.Asked by James 2 years ago</p><p></p><p></p><p>Product Owner - garthdial3811When you say "lowest setting", are you referring to the white marks on the base or when the cross bar is adjusted down to actually just touch the top of the receiver? The lowest setting sould be down to the receiver top; forget about those white marks because they are only a distraction.You didn't specify the range you were sighting in at or your barrel length. These are important to the calculation. All of my Marlin 39s have 24" barrels, so the sight radius with the FP-39 is about 26". To correct for 2' high at:100 yards sight-in→0.173" taller 75 yards sight-in→0.231" taller 50 yards sight-in→0.347" taller 25 yards sight-in→0.693" tallerAfter looking at these numbers, I will assume that you were sighting in at about 100 yards because the 75 yard correction is questionable and the 50 and 25 yard corrections are just plain silly! 100 yards is a stretch for the .22LR cartridge. 75 yards is about the maximum range for the energy available to cleanly kill rabbits, which are about as big a game animal that a 22 should be used for. Here's a tip from the 1950's that the shooting folks seem to have forgotten. It's called "Sight-in for the Muzzle Velocity". Let's say your 22's velocity is ~1200fps. Take the first two digits, which would be 12, and sight-in dead on at 12 yards. The bullet will be dead on again at about 7 times that distance, which would be 84 yards. This method works for all guns and cartridges and saves a lot of time, ammo, and walking at the range.</p></blockquote><p></p>
[QUOTE="mr ed, post: 3712093, member: 6777"] got this from midway Q&A Q What front sight will work with this rear sight ? The current front sight is to low and at the lowest setting of the rear sight it shoots 2 ft high.Asked by James 2 years ago Product Owner - garthdial3811When you say "lowest setting", are you referring to the white marks on the base or when the cross bar is adjusted down to actually just touch the top of the receiver? The lowest setting sould be down to the receiver top; forget about those white marks because they are only a distraction.You didn't specify the range you were sighting in at or your barrel length. These are important to the calculation. All of my Marlin 39s have 24" barrels, so the sight radius with the FP-39 is about 26". To correct for 2' high at:100 yards sight-in→0.173" taller 75 yards sight-in→0.231" taller 50 yards sight-in→0.347" taller 25 yards sight-in→0.693" tallerAfter looking at these numbers, I will assume that you were sighting in at about 100 yards because the 75 yard correction is questionable and the 50 and 25 yard corrections are just plain silly! 100 yards is a stretch for the .22LR cartridge. 75 yards is about the maximum range for the energy available to cleanly kill rabbits, which are about as big a game animal that a 22 should be used for. Here's a tip from the 1950's that the shooting folks seem to have forgotten. It's called "Sight-in for the Muzzle Velocity". Let's say your 22's velocity is ~1200fps. Take the first two digits, which would be 12, and sight-in dead on at 12 yards. The bullet will be dead on again at about 7 times that distance, which would be 84 yards. This method works for all guns and cartridges and saves a lot of time, ammo, and walking at the range. [/QUOTE]
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