Ballistics history, classification of firearms and Ammunition 

I can't get over the accent 😂 it's Soo good !

what is munition pls tell

it is simply read like a news paper..

Very well explained.. amazing...

this would be interesting if I could understand a word you were saying

Mam criminology ki kun si book bst rhegi UGC m ppr 2 k liye plzz suggest kre

Ma'am kollatto superaa

very nice

pitch of rifled barrel is- distance in which a land or groove complete one circle incide barrel.

Suggest me a basic book of ballistics and physics for forensics science

Trying hard.. Thanks 😯

Good....but need more casual...

Painful lecture. Good subject matter. Not enough cow-bell.

Try to improve your speaking skills

You are speaking as if we dont understand english

Cover urself