Re: SR-25
the problem with the accuracy with the military models comes from two places, 1. they have the KAC-2 point suppressor which is an extremely poor design. The 2 pt. suppressor cause a lot of problems because as the barrel and suppressor heat and cool at difference rates, one binds the other causing a problem with the harmonics and accuracy.
The next accuracy problem is generally the shooter. Poor fundamentals, especially with a gas gun. Its a different system and cannot be compared to shooting an AR15/M16 type rifle as the weights and bullet contribute more to how you drive the rifle.
The suppressor does blow a ton of material back into the chamber, so cleaning is important in that area. It's probably one of the dirtiest rifles I have seen.
The biggest problem with the SR25/ Mk 11 system we see is the bolt stop, they break, and break much more than you think. The problem isn't that the stop breaks but the frame cracks and that has the potential to cause huge problems which put the gun immediately out of commission.
If you look in this image you see the bolt release is missing:
One of two things happens when it breaks, you can either remove it and continue to work with it out, so the bolt won't lock to the rear, or it breaks when the bolt is in the buffer tube and you can't use the rifle at all. It jams the bolt in place.
With non-SOCOM Mk 11s we have seen them very badly out of spec, which is a product of poor QC from KAC, including bolts and bolt faces being very far out of spec.
The M110, has problems in the same area, but also, issues with the triggers, a large majority are taken out of service to have the triggers replaced.
The design on the M110 makes it unbalanced, and the birdcage on the muzzle is pretty silly. The barrel is longer, the suppressor is longer, the stock hollow. The balance is all off.
We have also seen a huge number of the scopes go down even brand new ones right out of the box, in my opinion, based on seeing too many of them, the scope is the weakest point in the whole system. But that is another story.
Its essentially a no-bid system that started out with cherry picked and custom designed sticks to impress the military and then went to a production rifle that doesn't even come close to the intended need. The Crane ones spec out around 1.5 MOA and that is usually on a good day. The non-crane models usually need to have the suppressor removed to get close to 2 MOA, maybe if you are lucky and a great driver you manage 1 to 1.25" MOA out of the system, but Quality control is definitely lacking. We alway recommend when you start out shoot the far targets first especially with the can on, because after about 20 to 30 rounds accuracy will drop off significantly.
They are Gucci but not nearly what you'd expect.
