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Breaking in a New Barrel
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<blockquote data-quote="MontanaRifleman" data-source="post: 310399" data-attributes="member: 11717"><p><span style="color: black"><span style="font-family: 'Verdana'">Jinx,</span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'"></span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'">I think you'll find that window cleaners contain both ammonia and soap or other cleaning products cut with a high percentage of water. </span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'"></span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'">You will find dozens of recommended ways to break-in a barrel but when you think about what the process is all about you will realize, that 1) ...to do it correctly you need to clean after each shot. Reason being, after a round is fired through the bore, copper or guilded metal is stripped from the bullet into the machine marks and other irregularities of the bore. This fouling prevents the lapping action of follow on bullets, meaning any other bullets fired through before cleaning are wasted as far as break-in is concerned. 2) ... every bore is different. To say it takes 10 shots to break-in any bore is... well... ridiculous. It tske as many shots as required to lap the roughness out of a particular bore. It may be 5, or it may be 13, or it may be 27.</span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'"></span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'">Ammonia is a potentially damaging substance to rifle bores. It must be used carefully and fully removed. I just avoid it all together because there are several products that do an excellent job of removing copper that are not damaging to rifles bores.</span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'"></span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'">So I'm really not very impressed with Howa's recommendations on cleaning or breaking-in barrels. I got instructions from Sako on how to clean a rifle that included using ammonia and a steel brush. That's absolutely crazy. I could not think of a worse way to the job. I wonder if they are encouraging faster barrel wear to sell more rifles?</span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'"></span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'">Here are a couple of very good articles by Dan Lilja on the subject. He recommends using a bronze brush and Butche's Bore Shine, and in that I disagree with him. Especially about the bronze brush. I have found that with a good solvent, no brushes at all are needed.</span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'"></span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'"><a href="http://www.riflebarrels.com/support/centerfire_maintenance.htm" target="_blank">Lilja Precision Rifle Barrels - Centerfire Maintenance</a></span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'"></span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'"><a href="http://www.riflebarrels.com/articles/barrel_making/barrel_fouling.htm" target="_blank">Lilja Precision Rifle Barrels - Articles: Barrel Fouling</a></span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'"></span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'"></span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'">Good shooting and may your barrels have good, long and prosperous lives,</span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'"></span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'">-MR</span></span></p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 310399, member: 11717"] [COLOR=black][FONT=Verdana]Jinx, I think you'll find that window cleaners contain both ammonia and soap or other cleaning products cut with a high percentage of water. You will find dozens of recommended ways to break-in a barrel but when you think about what the process is all about you will realize, that 1) ...to do it correctly you need to clean after each shot. Reason being, after a round is fired through the bore, copper or guilded metal is stripped from the bullet into the machine marks and other irregularities of the bore. This fouling prevents the lapping action of follow on bullets, meaning any other bullets fired through before cleaning are wasted as far as break-in is concerned. 2) ... every bore is different. To say it takes 10 shots to break-in any bore is... well... ridiculous. It tske as many shots as required to lap the roughness out of a particular bore. It may be 5, or it may be 13, or it may be 27. Ammonia is a potentially damaging substance to rifle bores. It must be used carefully and fully removed. I just avoid it all together because there are several products that do an excellent job of removing copper that are not damaging to rifles bores. So I'm really not very impressed with Howa's recommendations on cleaning or breaking-in barrels. I got instructions from Sako on how to clean a rifle that included using ammonia and a steel brush. That's absolutely crazy. I could not think of a worse way to the job. I wonder if they are encouraging faster barrel wear to sell more rifles? Here are a couple of very good articles by Dan Lilja on the subject. He recommends using a bronze brush and Butche's Bore Shine, and in that I disagree with him. Especially about the bronze brush. I have found that with a good solvent, no brushes at all are needed. [URL="http://www.riflebarrels.com/support/centerfire_maintenance.htm"]Lilja Precision Rifle Barrels - Centerfire Maintenance[/URL] [URL="http://www.riflebarrels.com/articles/barrel_making/barrel_fouling.htm"]Lilja Precision Rifle Barrels - Articles: Barrel Fouling[/URL] Good shooting and may your barrels have good, long and prosperous lives, -MR[/FONT][/COLOR] [/QUOTE]
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