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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Match Grade Barrell break in procedures
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<blockquote data-quote="shortgrass" data-source="post: 1020448" data-attributes="member: 24284"><p>"Factory barrels are usually chrome lined" ,,, since when?? The only chrome lined barrels I familiar with are those for ARs or other 'military' style rifles. Sav., Rem. Win., Ruger don't chrome line their rifle barrels. MGB (match grade barrels? ) are CMV (chrome moly vandium?) . Again,, since when? Lots of match grade barrels are made of 416R stainless steel, and every barrel maker has their own 'formula' for the steel they use. Some have vandium, some don't. Vandium not being the chemical element that determines "match grade" or not, only the quality of the work done to that steel can determine that. As for "break-in", a properly hand lapped barrel needs very little, in my experience. Usually less than 15 rds., and I've used and installed a lot of match grade barrels from many different makers (Kriegers, Harts, Bartliens, Shilens, Brux, Pac-Nor, Rock Creek, Broughton). Jacket hardness of the bullets being used will make a difference. I don't think I'd used bullets designed for varminting to "break-in" a barrel with. Any barrel marketed as "custom" thats not lapped is just a 'wanna-be', regardless of the type of steel it's made of. Chrome lining adds to barrel life and corrosion resistance, but not to the accuracy of a barrel. Some factory barrels never seem to "break-in", and true match grade barrels don't need "fouling shots" to be accurate.</p></blockquote><p></p>
[QUOTE="shortgrass, post: 1020448, member: 24284"] "Factory barrels are usually chrome lined" ,,, since when?? The only chrome lined barrels I familiar with are those for ARs or other 'military' style rifles. Sav., Rem. Win., Ruger don't chrome line their rifle barrels. MGB (match grade barrels? ) are CMV (chrome moly vandium?) . Again,, since when? Lots of match grade barrels are made of 416R stainless steel, and every barrel maker has their own 'formula' for the steel they use. Some have vandium, some don't. Vandium not being the chemical element that determines "match grade" or not, only the quality of the work done to that steel can determine that. As for "break-in", a properly hand lapped barrel needs very little, in my experience. Usually less than 15 rds., and I've used and installed a lot of match grade barrels from many different makers (Kriegers, Harts, Bartliens, Shilens, Brux, Pac-Nor, Rock Creek, Broughton). Jacket hardness of the bullets being used will make a difference. I don't think I'd used bullets designed for varminting to "break-in" a barrel with. Any barrel marketed as "custom" thats not lapped is just a 'wanna-be', regardless of the type of steel it's made of. Chrome lining adds to barrel life and corrosion resistance, but not to the accuracy of a barrel. Some factory barrels never seem to "break-in", and true match grade barrels don't need "fouling shots" to be accurate. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Match Grade Barrell break in procedures
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