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I know about the commercial and mil spec buffer tubes, but when it comes to other parts of an AR.....are they different? I have a commercial spec DPMS and would like to upgrade some of the parts. Carrier, spring, buffer, etc... Most of what I come across says "mil spec" and was wondering if all...

The Armory Channel on YouTube rebuilt an AR-15 and one of the parts was a one piece nickel boron carrier where the gas key wasn't screwed in. It sounds like he says Xo but I'm guessing it's EXO from Failzero. I checked their website but they were all two piece from what I could tell. Does anyone...

I ran out of Berry's 115 gr. flat base and now I'm going to load 115 gr. Winchester FMJ hollow base bullets (WB9MC115). Of course, no load data is available for these so I was wondering if the load charge would change and if the OAL would change. I was using 4 grains of Titegroup with the...

Just got into reloading awhile back and purchased a Hornady GS-1500 scale. Being only $30 well, you tend to get what you pay for. Needless to say, I'm looking for a new (better) scale. Lyman just came out last month with their accu-touch 2000...

First question is....all other things being equal, would the load data change if the bullet was flat based vs. hollow based? Secondly...I'm trying to understand *why to use* different powders. I know they all have different burn rates, shapes, and maybe a couple of other characteristics..but...