"Better" is a very subjective word. It depends on what you want, and different people want different things. The .40 caliber round tends to have slightly lower velocity but more muzzle energy than the 9mm, but it depends on which specific cartridges you are comparing. 9mm ammo is (normally) less expensive than .40, so it's cheaper to shoot if you shoot very often.
The difference between a 40 grain bullet and a 36 grain bullet lies in their weight. The 40 grain bullet is heavier, which can result in higher velocity and potentially better accuracy due to increased stability. However, the 36 grain bullet may have a flatter trajectory due to its lighter weight.
No
Yes, a 45 caliber bullet is bigger than a 40 caliber bullet. A .45 is0.45 inches wide in diameter and a .40 is 0.4 inches in diameter.
A .40 caliber bullet typically travels farther than a 9mm bullet due to its higher muzzle velocity and larger size. The .40 caliber bullet has more energy and better ballistic performance, allowing it to maintain its velocity over longer distances compared to a 9mm bullet.
200-450 USD
No way to answer without knowing specific model.
If you mean a .40 caliber bullet in a .32 caliber gun- no. The bullet would be 8 thousandths of inch too large to fit in the gun. Caliber refers to the diameter of the bullet, so a .40 caliber bullet is ABOUT .40 inches across, and a .32 bullet ABOUT .32 inches across.
Depending on the arrow, yes, it may. A .22LR bullet is fairly light weight (40 grains) is is relatively blunt. The arrow weighs more, and is shaped to push through material.
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There are various difference, but the most common answer would be the .45 is .05 of an inch larger in diameter than a .40.
Yes. The .32/20 uses a slightly smaller diameter bullet than the .32/40. Also, since the .32/40 used heavier bullets they are proportionately longer. Bullets designed for the .32/40 are not compatible with the .32/20. Consult any current reloading manual for starting loads and bullet choices.
If you mean how heavy is the bullet in a .40 caliber cartridge, the answer is, it ranges from about 150 grains to about 180 grains.