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Hunting
Long Range Hunting & Shooting
"Trued" action With factory barrel
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<blockquote data-quote="J E Custom" data-source="post: 1344442" data-attributes="member: 2736"><p>I totally agree and this is where the good smith comes in. A good smith takes into consideration all of these factors and only laps enough to solve most problems.</p><p></p><p>There is a lot more to lapping than just using an abrasive. He has to cast a lap in the actual bore and apply the proper grit for the job. I use anywhere from 1500 grit non imbedding compound to 400 grit aggressive compound depending on the bore. Several times I found the bore to have tight spots and had to cast laps in the tight spots so lapping would uniform the bore in addition to creating a good finish.</p><p></p><p>The worst bore I ever dealt with was a Winchester Coyote barrel that had 5 tight spots so I ended up casting 3 different laps in order to get the bore uniform with out opening the bore dia. beyond specifications. this barrel improved greatly (From 5+ MOA to les than 1 MOA and the velocity improved by almost 70 ft/sec. (could be that removing the tight spots made the difference or the combination or all the lapping processes combined).</p><p></p><p>Again; like anything else, lapping can destroy the bore if not done correctly and with care and thought but can greatly improve it if done right.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1344442, member: 2736"] I totally agree and this is where the good smith comes in. A good smith takes into consideration all of these factors and only laps enough to solve most problems. There is a lot more to lapping than just using an abrasive. He has to cast a lap in the actual bore and apply the proper grit for the job. I use anywhere from 1500 grit non imbedding compound to 400 grit aggressive compound depending on the bore. Several times I found the bore to have tight spots and had to cast laps in the tight spots so lapping would uniform the bore in addition to creating a good finish. The worst bore I ever dealt with was a Winchester Coyote barrel that had 5 tight spots so I ended up casting 3 different laps in order to get the bore uniform with out opening the bore dia. beyond specifications. this barrel improved greatly (From 5+ MOA to les than 1 MOA and the velocity improved by almost 70 ft/sec. (could be that removing the tight spots made the difference or the combination or all the lapping processes combined). Again; like anything else, lapping can destroy the bore if not done correctly and with care and thought but can greatly improve it if done right. J E CUSTOM [/QUOTE]
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"Trued" action With factory barrel
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