To get a "light" 10m rifle, in general, you need to get a "mini" or "junior" rifle.
The full size 10m match rifles are at the max weight, which I think is about 11 pounds. They want the rifle as heavy as the rules allow, to help dampen wobble.
Now I don't know how much weight you can "remove" from one of the aluminum stock rifles, but then you start upsetting the balance.
Better to just get a mini/junior.
Next is to decide if you want CA/PCP, SSP vs spring.
If you want absolute minimal movement and least effort, then CA/PCP or CO2 is the choice.
If you want to avoid the logistics of gas, then SSP or spring.
If you like the charm and warmth of the older rifles or like shooting a "classic," then spring.
I have a FWB-300-mini and an FWB-P70-junior.
The 300 is fun to shoot, but for the most accuracy I shoot the P70 as it is easier to shoot more accurately.
Now here are the issues I have with most mini/junior match rifles.
- they are abidextrous, which means neither right nor left handed. The pistol grip is a compromise for right and left hand shooters, not as comfortable as a dedicated right or left hand stock. It is ambi simply because it is cheaper to make and inventory one ambi stock than a right and left hand stocks, especially when the selling volume is not as high as the full size rifles. If they make right and left hand stocks, they would have to raise the price of the mini/juniors.
- there isn't a muzzle weight, so you get more muzzle movement. For many you can get factory or aftermarket muzzle weights, so this isn't a deal breaker.
- if you are TALL, the shorter LoP can be an issue. If you are short like me (5'4") the junior fits me much better than a full size rifle.
- because many use wood stocks, they have less adjustments than the full size rifle. But the same can be said of wood vs aluminum stocked full size rifles.
Advice:
Get a back belt from Home Depot (or similar store). This will help to protect your lower back as you hold that heavy rifle. The belt is NOT competition legal, but for casual use at home...who cares. The back belt is a heck of a lot cheaper than a shooting jacket...especially if your waist is expanding :-( since the jacket is NOT adjustable for that.