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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
over sized bullets?
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<blockquote data-quote="DANTEC" data-source="post: 28635" data-attributes="member: 685"><p>for some old hunting barrel in very un commun caliber I just make the first drive band ( front of the neck ) over size , by this way</p><p>you dont expand your neck to much </p><p>you get enought contavt to get good seal </p><p></p><p>some 0.50 cal are from miltary surplus and most of them are over caliber 0.510+++ even find some real machine gun in 0.518 cal ( old machine gun sec ) </p><p></p><p>so best is to check with lead bullet / slug tight fit in the barrel what is your barrel caliber before to agjust bullet diameter </p><p></p><p>if you go with drive band design you can run over size bullet because radial pressure stay low yoy flow the bullet metal into the groove , no to much to avoid serious galling or fouling </p><p></p><p>good shooting</p><p></p><p>DAN TEC</p></blockquote><p></p>
[QUOTE="DANTEC, post: 28635, member: 685"] for some old hunting barrel in very un commun caliber I just make the first drive band ( front of the neck ) over size , by this way you dont expand your neck to much you get enought contavt to get good seal some 0.50 cal are from miltary surplus and most of them are over caliber 0.510+++ even find some real machine gun in 0.518 cal ( old machine gun sec ) so best is to check with lead bullet / slug tight fit in the barrel what is your barrel caliber before to agjust bullet diameter if you go with drive band design you can run over size bullet because radial pressure stay low yoy flow the bullet metal into the groove , no to much to avoid serious galling or fouling good shooting DAN TEC [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
over sized bullets?
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