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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet modification
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<blockquote data-quote="Bullet bumper" data-source="post: 912161" data-attributes="member: 17844"><p>A rebated boat tail has no advantage over a smooth boat tail. </p><p>The reason a rebated boat tail exists at all is that it is the only easy way to make one in hand press and die systems. If you try and make a smooth transition boat tail then the edge of the base forming punch is so thin on the edge it will crack and flake under pressure so they step it in a bit to thicken the edge and it creates a step in the edge of the boat tail . The real clever part is they then make up a c*ck and bull story of how it's a special design meant to be that way . </p><p>I make my own bullets and have for many years and this is an interesting thread but If I was doing this type of thing I think I would want to true up the meplat insert with the ogive in a die of some kind maybe even give it a bit of an ogive bump up without bumping the shank diameter . </p><p>This way the junction of the cone and the start of the jacket might be much better inline . Any ridge in that area could start an uneven shock wave that may or may not affect accuracy but it could increase drag .</p></blockquote><p></p>
[QUOTE="Bullet bumper, post: 912161, member: 17844"] A rebated boat tail has no advantage over a smooth boat tail. The reason a rebated boat tail exists at all is that it is the only easy way to make one in hand press and die systems. If you try and make a smooth transition boat tail then the edge of the base forming punch is so thin on the edge it will crack and flake under pressure so they step it in a bit to thicken the edge and it creates a step in the edge of the boat tail . The real clever part is they then make up a c*ck and bull story of how it's a special design meant to be that way . I make my own bullets and have for many years and this is an interesting thread but If I was doing this type of thing I think I would want to true up the meplat insert with the ogive in a die of some kind maybe even give it a bit of an ogive bump up without bumping the shank diameter . This way the junction of the cone and the start of the jacket might be much better inline . Any ridge in that area could start an uneven shock wave that may or may not affect accuracy but it could increase drag . [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Bullet modification
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