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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Winchester bore and cast bullets leading
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<blockquote data-quote="shootski" data-source="post: 2193958" data-attributes="member: 106014"><p>So what happens when you shoot dead soft lead bullets without powder propellant? Very little to no Leading using dead soft lead with not a speck of lubricant of any type; lube actually increases my group size by at least 1/3 I shoot .25, .308, .458, .58 caliber bullets (oversized by .001 from the properly slugged bore) and/or Lead ball with 3,500 to 4,500 psi of air with muzzle velocities from the low 600 to almost 1,400fps. The bullets and ball weigh from 45 all the way up to 510 grain.</p><p>IF i find a LEADING problem in one of my bores I reach for the J-B NON Embedding bore cleaning compound and Lewis Lead remover if it is really affecting accuracy and that doesn't happen often and never from some of them thus far. I use a bronze brush with the J-B since my airgun barrels are much softer Steel than a firearm barrel is made with. The easier machining steel as well as the skills of my airgun smith are such that my bores look like a mirror compared to those depicted by the OP. </p><p>That leads me to believe it may take J-B Paste and then the J-B Non Embedding to get similar polished bore conditions on a firearm bore steel.</p><p>My experience makes me believe the OP's Leading is from over hard Lead, oversized/undersized bullets, or bypass gas cutting, or perhaps a combination of them, already well covered by other posters.</p><p>Dead soft Lead shot from Big Bore airguns has humanely taken all of North Americas large game animals as well as exotics up to 2,000 pound Cape Buffalo.</p></blockquote><p></p>
[QUOTE="shootski, post: 2193958, member: 106014"] So what happens when you shoot dead soft lead bullets without powder propellant? Very little to no Leading using dead soft lead with not a speck of lubricant of any type; lube actually increases my group size by at least 1/3 I shoot .25, .308, .458, .58 caliber bullets (oversized by .001 from the properly slugged bore) and/or Lead ball with 3,500 to 4,500 psi of air with muzzle velocities from the low 600 to almost 1,400fps. The bullets and ball weigh from 45 all the way up to 510 grain. IF i find a LEADING problem in one of my bores I reach for the J-B NON Embedding bore cleaning compound and Lewis Lead remover if it is really affecting accuracy and that doesn't happen often and never from some of them thus far. I use a bronze brush with the J-B since my airgun barrels are much softer Steel than a firearm barrel is made with. The easier machining steel as well as the skills of my airgun smith are such that my bores look like a mirror compared to those depicted by the OP. That leads me to believe it may take J-B Paste and then the J-B Non Embedding to get similar polished bore conditions on a firearm bore steel. My experience makes me believe the OP's Leading is from over hard Lead, oversized/undersized bullets, or bypass gas cutting, or perhaps a combination of them, already well covered by other posters. Dead soft Lead shot from Big Bore airguns has humanely taken all of North Americas large game animals as well as exotics up to 2,000 pound Cape Buffalo. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Winchester bore and cast bullets leading
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