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Bullet behind Bullet
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<blockquote data-quote="AZShooter" data-source="post: 1845419" data-attributes="member: 5219"><p>The odds are high that two different bullets and loads will shoot to different points of impact at 100 yds.</p><p></p><p>I once helped a shooter make loads for an African trip. We used 300 gr softs and solids made by Hornady. The bullets were similar and with some minor powder tweaking we got the rifle to shoot same POI at 100 yds. The BC for these two bullets is the same but velocities were slightly different so with distance they would likely have different trajectories.</p><p></p><p>I knew a guy who spent a great deal of time getting his rifle to shoot three types of bullets with same impact point at 100 yds. I was a hobby of his. I guess everyone has to have something to do.</p><p></p><p></p><p>There are some that don't like to shoot two different bullets through the bore without cleaning in between. If the jacket alloys are different it can cause severe fouling issues. Shooting a mono like a Barnes after shooting a jacketed bullet will cause the softer Barnes bullet rub off on the harder fouling left by the jacketed bullet. </p><p></p><p>I have a 6mm-284 sporter that shoots a 55 gr ballistic tip 1/2" lower at 100 yds than the 95 gr Berger even though it is going 600 fps faster. I believe it has to do with barrel harmonics. I never shot one bullet after the other so don't know how that would have worked out.</p></blockquote><p></p>
[QUOTE="AZShooter, post: 1845419, member: 5219"] The odds are high that two different bullets and loads will shoot to different points of impact at 100 yds. I once helped a shooter make loads for an African trip. We used 300 gr softs and solids made by Hornady. The bullets were similar and with some minor powder tweaking we got the rifle to shoot same POI at 100 yds. The BC for these two bullets is the same but velocities were slightly different so with distance they would likely have different trajectories. I knew a guy who spent a great deal of time getting his rifle to shoot three types of bullets with same impact point at 100 yds. I was a hobby of his. I guess everyone has to have something to do. There are some that don't like to shoot two different bullets through the bore without cleaning in between. If the jacket alloys are different it can cause severe fouling issues. Shooting a mono like a Barnes after shooting a jacketed bullet will cause the softer Barnes bullet rub off on the harder fouling left by the jacketed bullet. I have a 6mm-284 sporter that shoots a 55 gr ballistic tip 1/2" lower at 100 yds than the 95 gr Berger even though it is going 600 fps faster. I believe it has to do with barrel harmonics. I never shot one bullet after the other so don't know how that would have worked out. [/QUOTE]
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