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Posted: 3/23/2007 9:55:46 AM EDT
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I recently got a new SPR. It is the A1A with 20" fluted barrel which is chrome lined. I am familiar with AR15 barrels that are chrome lined and I know that they require no break in procedure besides just shooting them. Is the procedure different for the SPR? I used the following procedure on it at the range. It is the only time I shot it so far. First 10 rounds *Using CLP only *First 10 rounds-after every shot mopped barrel with CLP on .30 cal. mop *Ran bronze bore brush through barrel twice back and forth from the chamber. *Using dry patches (2) I dried the barrel Next 15 rounds *Same cleaning procedure as above except for I did it after every 3 rounds. I noticed that in the log book the factory had shot 8 rounds through the rifle. Is this rifle broken in or should I keep doing what I have done or something else. I really want to keep this rifle as accurate as possible since I am getting into precision rifle contests. |
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I have heard it both ways, as far as whether the barrel needs breaking in. On my first one, I didn't bother with any break in cleaning regimen. The barrel still cleaned up in a snap after each session. On my second one, I did clean after each round for the first 5 rnds, then cleaned every 10-20 rnds or so after that. Cleanup is still just as quick with this barrel. So I would say, don't worry about it. Don't clean the barrel with clp, period. You will not be able to remove any copper build up with clp, and copper fouling is what matters most. Use a good copper solvent like Barnes CR-10, Sweets 7.62, or my favorite Montana Extreme 50BMG. The ME 50BMG is supposed to be formulated so as to not etch the bore if it is left in the barrel too long. One other bad thing about clp, if it is the Breakfree variety, is that it has teflon. Teflon exposed to high temps and pressure can break down into corrosive compounds. I should add that these barrels clean so easily, that I have been able to remove all the copper from mine, using only hoppes no. 9. However, to be certain, I always follow up with a dedicated copper solvent afterwards. Just make sure to swab out the bore with alcohol to neutralize any remaining solvent before using a different solvent in the bore, so as to prevent any bad chemical reactions from taking place inside your bore. |
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I never thought about the teflon component in the CLP. I always used it for regular cleaning and once a month I use Outers Nitro Solvent. Mainly due to objections about the odor from my wife. I can get away with CLP but not the Nitro Solvent. When I do use the Nitro I am forced to go outside and it gets cold in PA. |
| If you think nitro solvent is bad, wait until you have used a good copper solvent. It about knocks you out. That said, at a bare minimum use hoppes no.9 to clean your barrel. It is a very mild copper solvent and in this case may be adequate to remove the copper from your barrel. The smell of hoppes is pretty mild in my opinion and should allow you to use it inside. |
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