Any nose MGs i put out at 650. Any wing mounted cannons i put at 400. And all my wing MGs are are 400.
Agreed. I put all of my MGs at 400yards. I never crisscross my convergence. In spite of some people's views, I have a logical reason as to why to never crisscross your MGs. The MGs were specifically designed to fire multiple rounds at the same time, and at the same point. Using this initiative, your guns will have twice as much hitting power when you shoot at an enemy at the converged point. If your convergence is spread out, then you lose the effectiveness of your MGs.
Cannons a bit different. Each round is much more heavier and the rounds are also explosive on impact. That being said, you have fewer rounds in your plane. This means you must place your shoots carefully. Cannons are in short reserve for two basic reasons: 1. Cannons are expensive to produce and 2. Cannons are very heavy and can pose adverse effects on your plane's manueverability.
Essentially there is no real way to determine which type of ammunition is the best. It all depends on your ability as a pilot. If you prefer getting close and nasty, use the cannons. If you like to fly fast and shoot your enemies from afar, then the MGs are the ones for you.
Here are my convergence settings on most of my planes:
50cals - 400 yards even (includes P51s, P47s, P38s, and P40s)
30cals - 350 yards even (includes Spitfires, Hurricanes, 110s, and other early war aircraft)
20mm - 275 yards (includes Tempests, Typhs, and N1Ks)
30-37mm - 250 yards (includes 109s, 190s, and P39s)
40mm - 225 yards (includes the Hurricane and IL2)
*Note* For the Me262, I set my convergence to 600 yards. I do this because of a few reasons.
1. You are flying very fast, and you have a shorter amount of time to shoot a plane
2. To give yourself more shooting time, you need to take your shots about 600-800 yards out before breaking off
3. This can help prevent you from colliding into other aircraft when shooting at a closer range