If you can't get the job done with this rifle, it probably isn't the rifle's fault.
This 7 foot bear was a one shot instant kill at 246 yards: 45-70, 350 North Fork.
This young boar was killed (DLP) after seven shots on two occasions, both after midnight, failed to deter his attempts to insert himself into our cabin.
This is the slug that failed to stop him, but made him sick enough to trot off and lie down. Two shots from a 45 Colt Carbine finished him, but exited after making longer tracks through his body; both hard 300 grainers.