Loaded to the pressures allowed by a replica firearm it is not enough. The caliber is good, but only when loaded up and fired in a strong, modern firearm. None of the replicas meet this criteria. Commercial ammunition cannot be loaded to anything approaching hunting levels, as it must be safe in old, weak, iron firearms from the turn of the century. You would have to handload, and then be sure your "hot" handloads are safe in your firearm. The manual should discuss this.