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Re: 1873 rear sight
Posted by Fred on Tuesday, 29 June 2010, at 8:25 p.m., in response to 1873 rear sight, posted by Bob Smith on Tuesday, 29 June 2010, at 4:09 p.m.
If your rifle is a later model thata was meant to shoot the 500 grain bullet, it will be more accurate with that round and of course, 70 grains of black powder. If it ws meant to shoot a 405 grain bullet, it probably won't chamber a 500 grain round because the rifling will start too far back as the 405 grain bullet didn't stick out of the case as far. If you're using some type of jacketed ammo out of a box from of of the shelf in a store, your rear sight won't be calibrated for that type of ammo. It'll probably shoot flater and faster making the rounds strike higher up on the target. You've got to remember that the rifles and carbines were made to shoot specific loads to get the correct results from the sights. The Buffington sight was disigned to adjust for the drift of the bullet as the sight was adjusted for the distance to the target. In this case, to the right because of the right hand twist of the rifling.With the correct type of load, the sights would keep you on target no matter what the distance and you didn't have to adjust for lateral drift (people call that windage) by aiming to the right or left of the target. You could adjust for drift caused by a cross wind of course by turning the knob for that purpose at the front of the Buffington sight. I'd start out by loading up some rounds that were identical to what that rifle was meant to shoot and go from there. The correct alloy of lead and tin would be good too. Buffington was able to take a rifle off of the rack in the armory and while standing, hit a fence post three or four times out of five at a very far range that might have been 1,000 yards if my memory serves me well. The 500 grain bullet wouldn't be affected by the wind very much and of course once adjusted by an experienced shooter, which Buffington was, the rifle did it's job and hit what was aimed at. I've been shooting trapdoors since 1971 and I've allways gotten the very best results from loads carefully prepared like those produced at Frankford Arsenal.
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