Hello Mehul Kamdar!
Unfortunately it is not my rifle.
It is on sale in Germany under the specified reference: http://www.egun.de/market/item.php?id=3773601
I use DR A.Frankotte .450Nfb (http://new-kynoch.apt-sites.com/450%20N%20for%20B.htm)
Excuse for my awful English, I use the Automatic translator:)