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Posted: 7/16/2013 7:39:02 PM EDT
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First, sorry I know this is probably answered in a couple places but there is so much random crap out there these days it is hard to find a good answer. I just got a brand new M&P15 and am new the platform. I'm mainly used to pistols and bolt action rifles so I don't know what the proper break in is for these. Shooting a hundred rounds out of a 270 never was going to be an option for me.
1) Anyways, what do I need to do before I get to the range. I understand a good cleaning is in order, and I saw the oil sticky, but is that about it? 2) I want to sight in my red dot while breaking in the barrel properly. Is there a necessary shoot/lube/clean procedure or is the first cleaning good. Is there a recommended number of rounds the first time out? (The M&P15 has a melonite coated barrel if that helps) 3) Lastly, I have the CMMG 22 conversion for the gun. Is this ok to shoot around with as well the first time (after zeroing and shooting for a bit with the 5.56)? I'm wondering about the breaking in the barrel thing and if just shooting my 5.56 ammo would be best the entire round. Thanks so much in advance for the help. I'd rather be safe than sorry and go about this in the right way. If I shouldn't be thinking this much about it just let me know. Have a good day! 
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If you have a CL bore it is better not to clean the rifle for a few hundred rounds.
No production barrel is going to benfit from a "break in" I tend to go with Gale McMillian on barrel break in and his reasons why it is a waste of time and money. http://www.6mmbr.com/gailmcmbreakin.html new rifle clean and inpect attach your sights go to range run it like your not paying for the ammo clean it when you get home. to much 22lr ammo can cause the gas port to get plugged with lead (no idea on how much but it has to be a lot). a 22lr upper is the best option. save a few 5.56 after your 22lr firing to clean out the gas system |
| one could even argue that if the bore looks clean you dont even need to clean it from the factory, just shoot it. Smith test fires every gun and pushes a patch through it so it doesnt ship with crumbs in the barrel. A gun with an obstructed barrel from the factory is a mega liability so you can be sure the gun ships in a ready to fire condition. Cleaning a new rifle out of the box is an opportunity for a new owner to handle and familiarize the platform but probably not necessary unless gunshop did something stupid. |
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Barrel break in is a waste of time in my opinion.
Some of the procedures I have heard of could take hours, and I've never been at a disadvantage after not doing it for my entire shooting career (not as long as most but still...). Just lube it up, take it to the range, and have fun, I have an older M&P15, they are fun guns, just like any other entry level AR15. Matt |
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I bought a Savage 22wmr a couple months ago. Bolt action stainless hbar.
The break-in instructions were the typical one shot, wet patch, dry patch, oil patch, second shot repeat. I did a modified version. 2/3 shots, clean, dry lube shoot. After 15 shots she is broken in my book and accurate as hell. I agree though, a production barrel is not going to benefit for accuracy but I think the single advantage you may get is a polished barrel so less fouling sticks? Just my 2 cents. We all know plenty of guys that don't break-in barrels and are good shooters. |
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