With out Knowing barrel length ect. I can not say how close the match his gun will be. This is from my Triumph with a good snug fit.
Gold Dot 300gr Chronograph was a chrony the gun was "0" at 100yd and has 8 inches drop at 200 yds

Yds Velocity -----ft #
0 ----1951----avg 2535
100---1916------- 2446-----"0"
200---1882--------2359----- 8" drop

With a well constructed bullet with a BC of over 2.3 this should be as accurate as the barrel length and fit of the bullet sabot permits.
I recommend care in choosing the bullet and placing the shot.
A Gold Dot 300gr ,A Lehigh 275 or 300 gr or a Nosler would be the first choices for me , in a state that required conicals a 350 gr FPB or Thor.
Hope this helps. Lee