just got a new 20" upper and manufacture said to break in the barrel. I know everybody has there opinions on break in, but does it matter if I use the cheaper fmj's to break in the barrel or do I need to break it in with what Im going to shoot, the 69 smk's.
new barrel break in question
- Thread starter kingfamous
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Re: new barrel break in question
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bobo</div><div class="ubbcode-body">Cheaper is fine</div></div>
+1
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bobo</div><div class="ubbcode-body">Cheaper is fine</div></div>
+1
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