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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
SPIN DRIFT!....I'm such a dummy
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<blockquote data-quote="Augustus" data-source="post: 463488" data-attributes="member: 10142"><p>When I first got interested in longrange shooting I did not do a lot of research and was overwhelmed by the hype surrounding the 50 cal generated by some of the manufacturers who were selling the round to the military. I bought an AR 50 and proceeded to shoot some of the military ammo from various countries. I quickly discovered that for precision longrange shooting the combo I had was just about useless. I then aquired the reloading equipment needed to produce my own ammo and began to see fairly decent results. </p><p> </p><p>I was zeroing at 100 yds and was using a USO Horus Reticle for holdovers. I noticed my groups were drifting ever farther to the right as the distance increased. I went through the pain of installing a rail level and using a plumb bob at distance to get the level and my reticle tuned and verticle. Hmmmm, the rds still drifted right. </p><p> </p><p>At this time I had never heard of spin drift but I was fairly sure my rds were drifting right and there was nothing I could do to stop it, it seemed to be about 1 min. I posted this on the HIDE and immediately was bombarded by folks that told me I needed to work on fundamentals. One told me he had discovered if he curled his little toe on his right foot the problem was fixed. Others told me I was not intelligent enough to tell if the wind was blowing or not. They just about had me convinced my problem was caused by the fact that I was born naked. I finally came to the realization I was experiencing about 1 min of rightward drift and it was very consistant so I might as well acccept the fact and compensate for it just as wind is compensated for.</p><p> </p><p>I tried to figure out why there was such resistance to the idea of spin drift and here is what I believe. Most of the people who are the most vocal in debunking the idea of spindrift will be instructors who are in the business of teaching fundamentals of shooting. They will downplay the importance of equipment induced errors and are quick to blame the errors on a shooters technique. Just think how many schools one would attend trying to stop bullets from drifting to the right.</p><p> </p><p>I was attending a school and one of the students was having a terrible time keeping his rounds under 2 min at all distances. He had a whole gang of instructors gathered around him telling him what he was doing wrong. I felt sorry for the poor guy and went to his position and told the instructors I thought I knew what the problem was and would they care to hear my ideas. </p><p> </p><p>One of the instructors was a very nice man and said " Sure Im about out of ideas". At that point I set my pet .308 beside the shooter and piled up a few rds beside it. I laid down beside him and said "Here try this one for a spell". The shooters poor shooting skills suddenly dissappeared and he began hammering everything in sight. Dont get me wrong, shooters can induce a lot of errors into a system but all the fundamentals in the world will not make a bad rifle shoot good or circumvent the laws of the universe.</p></blockquote><p></p>
[QUOTE="Augustus, post: 463488, member: 10142"] When I first got interested in longrange shooting I did not do a lot of research and was overwhelmed by the hype surrounding the 50 cal generated by some of the manufacturers who were selling the round to the military. I bought an AR 50 and proceeded to shoot some of the military ammo from various countries. I quickly discovered that for precision longrange shooting the combo I had was just about useless. I then aquired the reloading equipment needed to produce my own ammo and began to see fairly decent results. I was zeroing at 100 yds and was using a USO Horus Reticle for holdovers. I noticed my groups were drifting ever farther to the right as the distance increased. I went through the pain of installing a rail level and using a plumb bob at distance to get the level and my reticle tuned and verticle. Hmmmm, the rds still drifted right. At this time I had never heard of spin drift but I was fairly sure my rds were drifting right and there was nothing I could do to stop it, it seemed to be about 1 min. I posted this on the HIDE and immediately was bombarded by folks that told me I needed to work on fundamentals. One told me he had discovered if he curled his little toe on his right foot the problem was fixed. Others told me I was not intelligent enough to tell if the wind was blowing or not. They just about had me convinced my problem was caused by the fact that I was born naked. I finally came to the realization I was experiencing about 1 min of rightward drift and it was very consistant so I might as well acccept the fact and compensate for it just as wind is compensated for. I tried to figure out why there was such resistance to the idea of spin drift and here is what I believe. Most of the people who are the most vocal in debunking the idea of spindrift will be instructors who are in the business of teaching fundamentals of shooting. They will downplay the importance of equipment induced errors and are quick to blame the errors on a shooters technique. Just think how many schools one would attend trying to stop bullets from drifting to the right. I was attending a school and one of the students was having a terrible time keeping his rounds under 2 min at all distances. He had a whole gang of instructors gathered around him telling him what he was doing wrong. I felt sorry for the poor guy and went to his position and told the instructors I thought I knew what the problem was and would they care to hear my ideas. One of the instructors was a very nice man and said " Sure Im about out of ideas". At that point I set my pet .308 beside the shooter and piled up a few rds beside it. I laid down beside him and said "Here try this one for a spell". The shooters poor shooting skills suddenly dissappeared and he began hammering everything in sight. Dont get me wrong, shooters can induce a lot of errors into a system but all the fundamentals in the world will not make a bad rifle shoot good or circumvent the laws of the universe. [/QUOTE]
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