Add new 20x82mm shell.

Adjust mass value of few magazines.

Update 10 rounds 7.62x51mm magazinewell.

Fix compatibility with RHS. Now you can manually switch ammo on T-xx serie.

Update magazine well.

Update magazine well.
Buff APCR damage by 5%.
Rescale the tracer scale of medium and large caliber.

Fix typo.
Add missing magazine to magazine well.

Tune few parameters in launcher ammo.