20mm vs 30mm cannon

[CrunchyKiwi]

on some of the bf 109's you can change between the 20mm and 30mm cannon. i know the 20mm has more ammo than the 30mm. faster bullet speed? better pen?

[Lain]

20mms fire faster, 30mms hit harder and have less ammo. I usually go for a 30mm in the nose and 20mms on the wings.

[Eftwyrd]

the 30mm has extremely low velocity making accurate shooting at long range very diffficult as the shells travel time will be several seconds, at short range the problem becomes a greater required lead on the target which can be hard to achieve (and an even greater problem in sim as the target will be well out of sight obscured by the nose of the aircraft)

so while the 30s do great against large predictable targets like bombers i prefer the 'less' effective 20mm as a general purpose weapon because they are easier to use in most situations

[SUCC]

Go for the 20mm. I do not recommend 30mm in a dogfight as you have to get very close (optimal at 300 meters) to get a good shot, otherwise your wasting your ammo if you try pumping rounds at 700 meters ( the distance you would most likely encounter in such BR)

Go for the 20mm on the nose, bullet drop is further, more ammo, better fire control.

Personally i would add 20mm gun pods and keep the 30mm to the bf 109 nose so that it can be used both in bomber attack and dogfighting (I'm a bit overkill type of guy, because i expect to kill someone at first encounter, if it fails, i run away to regain energy rather than dogfighting). You must acknowledge that the gun pods can affect your agility (thought i find it not to a great extend).

[Lrfss]

I started with 20's and ran with them for years...I tried 30's across the board about a year ago and never looked back. 30's for me, they are flat out deadly when you get a hit and I have no problems getting hits thankfully...LoL

[Ruiツ]

İlk olarak Lrfss tarafından gönderildi:

I started with 20's and ran with them for years...I tried 30's across the board about a year ago and never looked back. 30's for me, they are flat out deadly when you get a hit and I have no problems getting hits thankfully...LoL

Same thing.
I ran with 20mm for the start, decided to try out 30mm and never looked back since.
Once you get used to the 30mm- they're lethal.