Im more a check it before I use something. Just an old habbit. Ill even do it with factory stuff. Testing the ammo and rifle function as well. I have had one case a long time ago where a batch of cant remember what it was didnt seem to feed smoothly when I ran it through a rifle. Same thing we do with the race car, go over it and test everything before you go out not wait till the race to find out if somethings wrong...
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