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2nd Question...
Bigger bullet = less recoil?
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Generally, heavier bullets pushed to max loads will have more recoil than lighter bullets pushed to max loads but, in most handgun loads, the difference attributed to JUST bullet weight is minimal.
40SW as an example, 135gr and 180gr, using Hodgdons fastest data for both and a 32 ounce gun, recoil impulse is 1.06 versus 1.07, velocity is 17.11 versus 17.19 and free recoil energy is 9.10 versus 9.17.
The powder can make a HUGE difference though. The pressure at the muzzle contributes to "rocket effect" after the bullet exits and essentially uncorks a very high-pressure bottle. The above numbers don't account for that factor, at all.
Just to make sure one important point about velocity is clearly understood, it is VERY dangerous to go chasing a velocity with just any old powder just because you know that a certain bullet weight can reach it. It might be able to reach it, but maybe not with EVERY powder and quite possibly not with MOST powders. Make sure you're using a powder that has published data that reaches the velocity you want and STAY WITHIN that published data. I think that's implied by the previous posts but it's very important.