please tell me as i recently procured a secondhand air rifle (dont know the brand it has an elephant type monogram)classic ??

secondly hitting a square piece of metal or a 5rupee coin at a distance of 29 feef or 8.5 meters with a flathead or pointed head pellet is it considered good or juat about average! since it is my first time i fired a gun ! i am grouping shots in a 5 inch radius or a cd taped to a plywood board!

and is penetration or range that i should be looking in pellets ??
this is an additional pic of the cross section of the pellets !
