Thanks for the advice, I've never considered how the metal bits can catch the brush. And I think you are right about buying the rifle for the primary use, seems that TAC A1 is not the do-all rifle I thought it would be. By the way, do you have to buy the bipod for the trg 22? Would it be possible to just use a caldwell front bag? Actually almost everyone installs a bipod on their sniper rifle and I'm wondering why.
If you are doing long range work in a competition, etc. then a bipod I think is a must because it is fast to deploy and quick to build a consistent position. You are typically under time pressure in a comp and don't have time to mess around.
For hunting though I basically never carry a bipod because it's just more weight and many hunting shots you can't use a bipod effectively anyway in my experience. I just use my backpack or use a loop sling for sitting.
Nathan Foster talks about shooting off packs, etc. vs. a bipod here. The technique to shoot off improvised supports is different than doing free recoil with a bipod. You must hold the gun securely at the forend for starters:
https://www.ballisticstudies.com/Knowledgebase/Hold+that+Forend.html