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XM7 worries from the field.

I'm just a guy who enjoys shooting and training, I've never been in the military. That said, this Sig rifle seems to miss the mark on so many obvious levels.

Not to mention the very significant increase in weight and reduced ammunition both in the rifle and in the soldier's loadout, the other problems are equally glaring to me.

This rifle is touted as having increased range, but every test I've seen shows that it is significantly less precise than some of the more modern M4 derivatives such as the URGI and even the block 2.

What good is having a hot rod cartridge if it is shooting 4 MOA? The poor accuracy more than offsets the increased effective range. It kind of makes the Uber expensive Vortex optic a waste as well.

If I was running the ship and I insisted on a cartridge with greater range, the 6 ARC or 6 Max seems like the obvious solution. Same small frame AR platform, same manual of arms, not much more recoil, not giving up much in terms of magazine capacity, and a significant increase in effective range.

Personally, a Geissele URGI with 77 grain mk262 and a Vortex Razor 1-6 or Nightforce NX8 1-8x would be my choice as the standard service weapon and ammunition.

But again, I'm just some guy in the woods who likes to shoot.

I'd be willing to bet my house that someone at the DOD is personally benefiting from the decision switch to that POS rifle.

Man ticketed for using “swear words -has beat criminal case

Most cops call themselves "cops" because they are too fucking stupid to spell policeman. Do you really think any of them know jackshit about the law?

Years ago one particular retard wanted to arrest me for carrying an illegal pocket knife. After a cop buddy of mine had asked me to be their designated driver for his drunken birthday party. So this fuck was drunk, my pocket knife was cooler than his and he got mad.

My drunk cop bud cooled him out. He was about to walk 20 miles with his asshole buddies back to town when cooler heads calmed this asshole down.

There is a few good ones. But I'd figure they run 90% retards with guns.
Nothing good can come from whipping anything out in front of a cop. Dick, car, concealed carry gun, knife, whatever.

BC Correction

Well, in my mind I consider it this way.... Setting up a bunch of gear downrange is a huge PITA, not to mention the expense in time and dollars to accomplish...... I'm not sure what. If you are able to get a 2nd Garmin to work, ok but how good is the data and how consistent are you able to capture all shots?

What I'm trying to say is that for the extra time and money invested, couldn't the same thing be accomplished by simply taking quality range notes and sorting it out in the comfort of your EZ chair at home after the fact? For 3k you could buy/load a lot of ammunition, even for the cost of a 2nd Garmin you could do a lot of shooting to sort out the minutiae. AB has a methodology of truing ballistics and none of the extras are required.

One could even attend one of the matches that AB brings the mobile lab to and get doppler data for their specific load in their own rifle for the cost of the match....
Well, I didn't think about attending a match and shooting over the AB radar. Yep, that would be the best way!

I don't have an issue with setting up the downrange gear. I can see where it is a hassle on some ranges. I know of one that it takes 30 minutes to drive to the 1 mile target because of the roads. That would, certainly be a pain. It is also not a place I'd choose to test unless I had a medium range radar (Infinition)...which I don't and won't.

In a side by side test at 300 meters, the downrange Garmin matched the Infinition radar. Yeah, I trust it provided you can put the bullet in the right zone (about 10" square according to Garmin).

The '89 has been tested alongside the Infinition and gave substantially the same results.

To the OP: You asked how to correct your BC. Use the method that makes the most sense to you and that proves to work for you. Me, first thing I'd do is switch to using a radar measured drag curve from a known source. A "G" based BC is no longer the best way.