I just shot my Win. Extreme 270WSM for the first time labor day. I used 140gr. Accubond handloads with RL17 powder. I got a 4 shot group of .400 of a inch. Thats my first box of reloads!! I love this gun!! Might sell some of my others now. I have a Zeiss Conquest 3X9X40 scope on it. I highley recommend this rifle. Also little to no recoil.
I have a good buddy that has one in .300 win. mag. and all I can say it is a great shooting gun. I went out and shot it for him when he did not have time to make sure it was on before elk season. He shoots factory ammo and still gets very good groups out of it. I would love to see waht it could do with some worked up handloads. If I did not already love my Ruger .338 win. mag. I would consider one in a .338 win. mag. You definetly can't go wrong with this rifle.
What does "gauge" mean anyway? As used here gauge means the number of round lead balls the same diameter as the inside of the barrel (aka the bore) that it would take to weigh one pound. It takes 12 lead balls the same diameter as a 12 gauge barrel to weigh a pound. The smaller 20 gauge would require 20 balls of that barrel diameter. The larger bore 12 gauge would require 12 lead balls of the bore diameter to weigh one pound.
In general the number of pellets in a shotgun shell...