I love my NEF
I have one in 30-06 with a .223 barrel. I love it. I admit that on paper I am not very accurate with the 30-06, but with deer sized game, it hits. The .223 on paper shoots .7" all day.
The NEF's are inexpensive, thus allowing more dough for a good scope, ammo and practice time. Like RemChester's, they need some "tuneing" for the best accuracy. Click on my www link for info.
Disadvantages...they are inexpensive so fit and finish isn't awesome, but definately acceptable. I have read a few post's of people that HATED their NEF\H&R. Maybe they got a lemon.
The two technique's I use: I shoot right handed...
1:
When taking standing shots, after I fire the shot I open the action and rest the rifle in my left hand at the hinge. With the right hand I grab a new round out of the butt cuff and pop it in the chamber and close the action while bringing the rifle back to my shoulder. Never lose sight of your target (you already knew that)
2:
When shooting from a bag or stick's, I hold an extra 2 or 3 rounds between my fingers of my left hand. After the shot I leave the forearm resting in the stick's with my right hand controling the gun. Then take one of the rounds from my left hand and slide it in and close the action using the sticks as leverage.
A buddy of mine has an NEF and he took one of those but cuffs and cut it so there is only 3 slots. He then hot glued the "cuff" to the side of the frame so the slots are parrallel with the barrel. He stuffs 2 .223's in each slot. He also has a mouse squeaker glued to the forearm. It works for him.
NEF Single Shot Discussion Group