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Bullet drop


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FS_Fenice_1965
Posted

Playing BOS of Stalingrad, mainly using the Yak, I found that the ballistic of the bullets is very different from what I've been used to in IL2, where the drop of the bullets due to the gravity seems much more evident, expecially with the german planes.

What's your opinion about this ?

Do you think it is a wrong impression ? and, if not, would it be advisable to refine the ballistics used in game ?

SCG_Space_Ghost
Posted

Playing BOS of Stalingrad, mainly using the Yak, I found that the ballistic of the bullets is very different from what I've been used to in IL2, where the drop of the bullets due to the gravity seems much more evident, expecially with the german planes.

What's your opinion about this ?

Do you think it is a wrong impression ? and, if not, would it be advisable to refine the ballistics used in game ?

Seems on to me.

 

Was just speaking to JG4_Karaya about this, actually.

 

In CloD I feel like the MG-FF/M pisses a weak stream of MGeschoss...

 

Despite the engineering differences and improvements that the MG121 has over the MG-FF/M, the MG121 in BoS feels more spot on ballistically and overall seem better modeled.

=362nd_FS=Hiromachi
Posted

Playing BOS of Stalingrad, mainly using the Yak, I found that the ballistic of the bullets is very different from what I've been used to in IL2, where the drop of the bullets due to the gravity seems much more evident, expecially with the german planes.

What's your opinion about this ?

Do you think it is a wrong impression ? and, if not, would it be advisable to refine the ballistics used in game ?

Well, the bullet drop depends on the weapon characteristics - the muzzle velocity, length of barrel and riffling.

In this case 20 mm Shvak achieved muzzle velocity of 800 m/s.Three versions of the 20mm ShVAK aircraft cannon were built: The synchronised wing cannon SP-20, the engine cannon MP-20 and the turret cannon with pistol grip and a rear spade grips. 

 

The MP-20 engine cannon is 2,155mm long and weighs 44.5kg. The barrel is 1,540mm long and is equipped with an unrifled forward extension tube to reach all the way through the aircraft engine. With this tube fitted the barrel has a total length of 1,700mm. Whilst the other versions have a rigid mounting, the engine cannon is equipped with a shock-absorber. The barrel is equipped with 8 grooves with a constant right hand rifling twist angle of 5.0°. The rifling grooves are 5.25mm wide and 0.35mm deep.
 
While for sure Shvak was not a great cannon and had many disadvantages, one of which could be not best ammunition (with low HE content) and was very sensitive, there were many cases when gun jammed, then the bad ballistics is not one of them. In fact due to that muzzle velocity and good construction, the AP rounds achieved pretty good penetrating capabilities. 
 
I actually see a major difference between MG 151/20 and Shvak in game - first has awesome destructive capabilities but not greatest ballistics, just good enough for me. Shvak has superior ballistics but is not as destructive. This is how I imagined it after reading data and documents and it seems to be correct in game.
 

 

In CloD I feel like the MG-FF/M pisses a weak stream of MGeschoss...

MG FF/M was an Oerlikon based weapon, with low RoF and muzzle velocity. MinenGeschoss in it have great destructive power, however you should not open fire at ranges above 300 meters, the best performance will be below 200. MG FF was used as stopgap before Mauser-Werke AG developed MG 151 and eventually MG 151/20. 

 

As said, use that cannons at close range only. 

Posted

Sorry for a little OT but does anyone know if dispersion is modeled?

 

I read someones post a few days ago and they were talking about getting an overheat warning regarding the guns, I have never seen such messages so I am not sure which gun overheats (all maybe?) any idea, is it all of them, how this works?

 

I remember a while back dispersion was eventually woven into ROF and it made a big difference especially if you kept your finger on the trigger, your bullets would start to go all over the place and it definitely was a good implementation. 

 

Thanks for any info,

 

Mick. :)

Posted (edited)

I remember it being brought up in a dev diary I think, Im not sure which one it is.

I know the weapons overheat and I think that will cause dispersion

I havnt really noticed much if any dispersion from very long burst though I think its neglible difference I would be more worried about damaging or jamming my mg/cannons

 

The dispersion in Rof is awesome, that game really taught me to use short accurate burst :)

Sorry for a little OT but does anyone know if dispersion is modeled?

 

I read someones post a few days ago and they were talking about getting an overheat warning regarding the guns, I have never seen such messages so I am not sure which gun overheats (all maybe?) any idea, is it all of them, how this works?

 

I remember a while back dispersion was eventually woven into ROF and it made a big difference especially if you kept your finger on the trigger, your bullets would start to go all over the place and it definitely was a good implementation. 

 

Thanks for any info,

 

Mick. :)

Edited by Mikey420
  • Upvote 1
Posted

Seems on to me.

 

Was just speaking to JG4_Karaya about this, actually.

 

In CloD I feel like the MG-FF/M pisses a weak stream of MGeschoss...

 

Despite the engineering differences and improvements that the MG121 has over the MG-FF/M, the MG121 in BoS feels more spot on ballistically and overall seem better modeled.

 

The MGFF in CLod, even with only minengeschoss are so underpowered that it is a joke.

 

Last night, I was flying on the ATAG server, and I hit a spitfire twice in two different passes with 20mm... twice at the right wing root... After that, 2 other pilots hit him with 20mm as well in two different occurance..

 

the guy was still flying, with no structural damage exept a lost aileron.. he kept flying for at least 3min before someone got a PK on him...

Posted

Standard Convergences of FW-190A2 same as A3

convergence01uls.jpg

 

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