Everyone has different needs and requirements of course, but the pattern with new people to the sport is generally the same...start out with the non-pal stuff, get PAL stuff, get sucked in to the FPS game, then down the road become more interested in smoothness and shot cycle.
Less than a year ago i got "back" in to all my airguns, many of which had not been touched in 5 or 6 years.
Over the last few months I've been de-tuning a lot of them. In my case, I only punch paper now anyway, usually indoors at 30yds max. Having ruined my wrist and shoulder over the years with recoil (I wonder if my targets ever noticed the difference between full bore .44 Mag loads and target loads
) I do not find it pleasant to cock a full power TR-77S one hundred times in a couple hours.
Although I despise the trajectory of a sub 500fps pellet, you really dont need much more for indoor basement shooting.
As for noise, you wont get anything much quieter than some of the Benji trails, Nitro Pistons in non PAL configuration. PAL ones, not so much. the gas ram is much thicker on shaft dia. and WAY stronger. Downside is these rifles are heavy, but if you're benching it indoors, who cares?
Theres some nice oddball stuff out there too, but again, they are NOT powerful.
Like this:
Or this C02 one:
Top one is a 5 shot repeater from Baikal, side cocker in .177.....probably the only way it would ever hit 450fps is if you threw it off a cliff, but all things being equal, it is more accurate than you are.
The bottom one is an Xisico C02 in .22. They are sold as non-pal and are one of the more refined Chinese air rifles. Two C02 carts and you are good to go. Again, unless something is wrong with it, its more accurate than you are.
Many (do your research) non PAL rifles can be taken to PAL levels and beyond if that is what you desire later on. You wont be saving any money though, and anyone who tells you to buy the PAL version (if thats what you want) to start with are bang on.
Now, you can also go out and drop $750 on a HW97 non PAL for the basement, OR triple that on PAL or non PAL PCP rifles. As with any interesting hobby, the limit is your wallet.
Being older now, and a little less spry
I like to tinker around as much as shoot. I buy cheap crap and play around with it, but also have the good stuff to take out and admire as well. I never fool much with the expensive ones, maybe a tune kit and thats it. Higher end German stuff is already very, very good.
Anyway, long winded post, but have fun!!