Hunting Washington Forum

Equipment & Gear => Guns and Ammo => Topic started by: CaNINE on February 13, 2017, 03:38:42 PM

Title: AR10 Reloading Question
Post by: CaNINE on February 13, 2017, 03:38:42 PM: I've been reloading for bolt action rifles for several years but this is my first attempt at loading for semi-auto rifles. My rifle is a Sig Sauer 716 Patrol.

I loaded Berger 175 OTM at a OAL of 2.80" behind 42 - 44 grains of Varget in 0.5 grain increments.

I got better than expected accuracy, the 42 grain load clover-leafed at 100 yards. As I increased in velocity the accuracy degraded but still didn't suck. So the good news is I think I'm onto a winner.

I noticed that all of my brass has a ding about mid-way down the case. It would follow that this is where the brass hits the ejector. My question, is this dent in the case a sign that I may be over-pressure or is this perfectly normal?
Title: Re: AR10 Reloading Question
Post by: h20hunter on February 13, 2017, 04:11:24 PM: Pm sent!
Title: Re: AR10 Reloading Question
Post by: JJB11B on February 13, 2017, 04:21:59 PM: my freshly built AR-15 is doing the same denting to my 5.56 cases. My upper doesn't have a brass deflector on it so I don't know where it is coming from