7in AR15 SBR max effective range?

[kimbercollector]

I cant seem to find a straight answer...

Im building up a 7 in SBR...I simply love the look.

In terms of shooting a standard 55FMJ that are right at about 2750fps...

What can I expect in terms of hitting the target at 50-150 meters?

What is the max effective range of this round and is there any power left for some knock-down?

Ive got to beleive at 50-100 meters, it has plenty to get the job done...

Experiences? Chronographs? Target pics of proof?

Thank you, Dave

 

[Don]

Your velocities should be more around the 24-2500fps range at near the muzzle, not quite high enough to fragment a bullet reliably. All it will do is punch .22 caliber holes very fast.

 

[stoyan79]

Be warned - 7 inchers are LOUD! Even when suppressed.

 

[stephen87]

Your velocities should be more around the 24-2500fps range at near the muzzle, not quite high enough to fragment a bullet reliably. All it will do is punch .22 caliber holes very fast.

Are you willing to put that to the test? I'd venture to say it'll still do damage.

 

[TheReaper]

Be warned - 7 inchers are LOUD! Even when suppressed.

10.5 inchers are loud, so I'm sure your right!

 

[Drakkule]

Be warned - 7 inchers are LOUD! Even when suppressed.

Yeah, but they sure are fun.

 

[jrainw]

Lots of witnesses this weekend of a 10" AR easily hitting a steel silhouette at 400 yards with an aimpoint. Zeroed at 300, hold was middle of the head for center mass impacts at 400. Ammo was 55 grain prvi. Took maybe 6-8 tries to hit a 4" circle. Might not be hitting hard at that range but I wouldn't want to be downrange of it.