Morning Folkes,
I am an Ex .22 rimfire target shooter who had to give up because I can't shoot in glasses and my eyesight isn't good enough at 100 yds.
I tried my mates air-rifle with a scope, and found the I could see the target clearly.
I have been doing some research to decide what gun to buy, and have come across the term "gas-ram", but I can't find out much about it other than it appears on the more expensive spring guns.

Could anyone please explain what a gas-ram is, and the pro's and con's of this system.
I am looking for accuracy, and realise that PCP rifles are the best but I'm put off by the initial outlay for charging equipment until I've found out if I enjoy the sport.