I always suggest that a gun buyer shoot about 500 rds. of factory with a new Glock, leave the copper stuff in place (Fel-Pro C5-A, it's a Mil Spec anti sieze), don't clean or dismantle until after the first 500. Also, using factory has an advantage, in that most firearms, if they're goiong to have a problem, will usually have it in the first couple of hundred rounds. If something DOES go wrong, a mfg'r. will respond better to you using factory. Most, Glock included, put a disclaimer in about using reloaded ammo & might give you grief with a problem. The 500 round break in will take care of most everything. As for cleaning, a Bore-Snake is a great investment. And the WORSE thing you can do to your Glock is over-oil it. I've worked in gun shops since 1997, & the most often cause of a Glock malfunctioning is TOO MUCH OIL. I ran my 1st Glock, a G20, in the following manner, to test things: All test runs were with 500 red. each. 1) Bore brush, out of box as shipped & lubed (500 rds) 2) Clean & oil per instruction manual (500 rds) 3) Stripped of ALL LUBE, run dry. The pistol was cleaned with lacquer thinner for this one ! (500 rds) 4) Lubed with powdered graphite, as for artic conditions (500 rds) 5) Cleaned to remove the graphite, lubed per manual & shot since. I clean this pistol about every 1000 rds, +/- and it currently has well over 25K thru it with no problems. This is the pistol I shoot most at GSSF matches. The first 2K thru it were aluminum cased Blazer, as there was no 10MM to be found back then. The Norma had dried up in my area. Yes, I reload, a LOT ! Good luck with your new Glockl uncle albert Wanna kill these ads? We can help!