Inches, welcome to THR.
Alright i know this may come across as stupid but im getting ready to buy my first handgun . Can i get some help?
Hopefully the previous replies have been helpful to you. You're not asking stupid questions at all. For someone new to handguns who goes and picks up a magazine off the rack I've no doubt that the myriad of guns & calibers can be downright overwhelming and confusing.
1. What better 9mm, .40 , or.45
All are good cartridges and all work well. A quick run down, thinking in terms of energy, let's think physics here, Mass X Acceleration = Energy. 9mm fires lighter bullets at pretty high velocities. Recoil is relative mild and feels like a quick snap. 45 ACP gets its energy by sending large heavy bullets at relatively low velocities. Recoil is a little more than 9mm, and feels more like a slow firm push. 40 S&W sits somewhere between 9mm & 45 ACP. Bullet weights are in the middle, and velocities are in the middle. In my experience 40 S&W has more perceived recoil than 9mm or 45 ACP. It has the snap of a 9mm combned with the push of a 45 ACP. Many beginners find it a stout load to shoot, but it can easily be worked up to for most folks. Hopefully that gives you same idea.
2. What the hell is GAP , ACP , ACP+P ?what does this mean its greek to me
To expand on the earlier replies, the 45 ACP is a longer cartridge than 9mm or 40 S&W. the 45 GAP is a shortened cartridge that retains similar performance to 45 ACP. This was done by Glock to create a 45 cartridge that would fit into their smaller 9mm & 40 S&W frames.
3. what bullet is more accurate?
Modern handguns are usually more accurate than the majority of people who shoot them are cpable of. However, some guns "like" a particular style and/or weight bullet. The only way to find this out is thru experimentation, and its generally done only by competition shooters who truly need the slight benefit it yields
4. Is XD better than glock or what ?
Personal preference and which one fits your hand best. The "Trying on a Handgun" article on
www.corneredcat.com provides an excellent explanation of handgun fit.
Corneredcat is a great website and full of very good info. Hopefully our responses thus far have helped you as well. If you need/want more info or clarification, or have more questions feel free to ask. THR is here for new shooters so let us know how we can help you.