Here's the .22 I use the most. Pound for pound, it's the most game harvesting and pest eliminating weapon I have. It's a Ruger 10/22 semi-auto.
The scope is a 4x40mm Tasco with a battery powered illuminated reticle for use in low light conditions. The pouch on the stock is a two pocket speedloader pouch originally made for the speedloaders for large revolver. Each pocket holds an extra 10 round rotary mag nicely without throwing off the balance of the rifle. In the bottom of one mag pouch, wedged in so it doesn't easily fall out is a pull through cleaning kit I made, and similarly wedged in the bottom of the other pouch are two battery changes for the scope. The scope's batteries last a long time and you really only need to turn the reticle light on under low light conditions.
The stock is a Butler Creek synthetic and the scope has Butler Creek flip up covers.
I'll usually use 32gr CCI Stinger hypervelocity hollowpoints or 36gr Federal high velocity hollowpoints. I also use a lot of CCI CB Longs. To use the CB Longs you load only 5 per mag to prevent jamming, and you cycle the action manually like a bolt action. I have some hi-cap mags for it, and I keep a couple of Eagle 30 rounders around in case of an emergency. The Butler Creek and the Eagles are the only .22LR hi-caps for the Ruger rimfire rifles that I find reliable.
Here's an example of a small carry load of tools for prolonged trekking in the Sonora desert.
The pistol is a Ruger MkII .22LR with synthetic rubber Houge grips. This pistol, based on the WWII Japanese Nambu is probably the best .22LR pistol design in the world. It's as close to indestructible as you can get in a pistol. This one is stainless steel with fixed sights and a standard contour 4-3/4" barrel. It is extremely accurate. I can kill a jackrabbit (American desert hare) with it at 75m. It's accurate enough that with much larger game you can pop them in the head. You can also kill birds like ducks and quail, often by shooting them in the head (quail you can often get surprisingly close). It uses 10 round magazines and I usually carry 5 of them. One is stored in a pouch on the holster.
One note about using a stainless firearm, especially a .22LR. Unless you want to have severe leading problems rather rapidly, you should try and only use copper plated lead or jacketed bullets.
On a .22LR semi-auto pistol like the MkII you can use CB Long ammunition, but you only load 4 per magazine and you manually cycle the weapon.
The khukuri is a Himalayan Imports 16.5" WWII pattern made in Nepal. The two traditional small tools in the modified original scabbard I replaced with ones I made. The karda (small knife) has a 3.5" blade and chakma (sharpening steel) is made out of a file. It had one edge polished smooth for use as a hone and has saw teeth for notching and scraping wood cut into the other edge. The coarse and fine file edges were retained and the end was sharpened into a chisel/scraper shape. The scabbard has a bundle of paracord, a magnesium firetool, the all important surgical tweezers, and a survival kit with sewing gear, fishing gear, whistle, extra compass, etc.
The other tools are my Leatherman Charge which I always have on me anyways, a really lightweight Gerber folding saw (usually an item for carry in the pack), and two very specific Sonoran desert tools for harvesting and processing edible desert plants, a 6" Rapala filet knife and a long pair of barbecue tongs. The maglite has an LED upgrade and is a backup to the LED headlamp normally carried.