If you are asking for factory loaded ammunition recommendations then any generic loaded lead bullet will work for your needs. Any specific gun will have a preference for one brand / type or cartridge and this will vary with each gun.
If you are asking for a handload recommendation a 158 grain Lead Semi Wadcutter bullet that you load to a muzzle velocity of around 800-900 FPS is both economical and pleasant to shoot.
100-5000+ depending on EXACTLY what you have
Yes
A good pistol for a beginner would be a 22 cal. pistol. The ammo is cheap to purchase and this will allow you to get lots of practice without breaking the bank. A 357 Magnum is another good choice.
A .357 firearm is typically a revolver or pistol that uses .357 caliber ammunition.
357 sig is a cartridge that is a relatively high speed handgun round. It is not a pistol itself, many, many pistols are chambered for this cartiridge.
SiG P229 in 357
Korth
a 357 cal. revolver cartridge WILL fit a colt 357 python. Also, a 38 special will fit a 357 cal. python. The 357 sig cartridge will NOT fit a 357 colt python................ The 357 sig cartridge ONLY fits the sig model pistol For clarity.....the sig 357 is a pistol. But, the 357 python is a revolver................
If you are asking about the Crosman C02 pellet pistol then Yes that is what it is designed to power the pistol.
No. The Glock is an auto pistol. With the exception of the .357 Sig, auto pistols do not shoot .357 cartridges.
Yes, you can fire a .357 Sig round (not a .357 Magnum) in it, but you must first change out the .40 barrel for the .357 barrel.
About $500