For heavens sakes if you want to try a bull barrel by all means get one!! They're awesome. You don't
have to spend a lot of money, I got a green mountain one and a lighter whistlepig one (it was a little more). The factory stock fits me ok so I hacked and carved on it and bedded my recievers. Rimfirecentral.com will help you with the details. I got a few little extras like different hammer, adjustable sear and trigger, stuff like that. I like to go to the range and pop golf balls off the 100 yard berm.
A 10/22 is the most fun you can have, they are fun to shoot and fun to buy things for. You can spend a lot of money or just a minimum. Here are a couple shots of mine
This one has the GM barrel, it's a little heavy. It traded it (and some $) for an ar15
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This one is my favorite, it has the whistle pig on it. I have one more reciever and some parts to build another one. I think I will purchase a stock for it instead of making one. I am into ar15's at the moment so it will have to wait.
The hard part, if you want to keep your factory stock is hogging it out to fit the bull barrel. It's not really hard as much as a pain, you take a dowel or two and wrap sandpaper around it and sand and sand and sand. You have to keep checking to make sure you don't remove to much. Rimfirecentral has all the info.
Once you modify a stock 10/22 it's hard to go back, at least for me. My trigger is so sweet and it's so much more accurate a stock one is just a starting point for me now. Once you do your first one you will be cruzing pawn shops to find a battered one cheap just so you can get the reciever and replace all the other parts.