I have one of these on my .308 and it's amazing:
AR15 Muzzle Rise Eliminator .223/5.56 Muzzle Brake AR-15 Muzzle Rise Eliminator Muzzle Brake [MRE] - $89.00 : Witt Machine (the link is for the .223 version)
However, I agree that the recoil is very light from a .223 semi-auto rifle. There are two other possibilities that could be causing her apprehension:
- Noise
- Improper mount/hold
Because the .223 round is quite loud, many people mistake that sound for recoil. I know this sounds weird, but it's a real phenomena.
If the gun is too high in her shoulder, or is too long, this also can enhance the felt recoil. Do you have a picture of her with the rifle mounted?
...(she's getting better and getting finger off trigger after each shot).
The instructor in me just can't let this by. By "better" are you saying that her trigger discipline is improving? I ask because a shooter should not remove their finger from the trigger after each shot. In fact, proper trigger control means, trapping the trigger back after the shot and then letting it out only enough to allow the trigger to reset. The trigger finger should never lose contact with the trigger.
Trigger discipline is another issue altogether. Good trigger discipline means having the trigger finger off the trigger when not pointed at the target. If she's still pointed at the intended target, the trigger finger should still be on the trigger.
How old is this young lady?
