Havn't heard of the mag bolt, but the difference between the hunter bolt and the fire bolt is very insignifigant. 24" vs. 26" barrel, no fluting vs. fluting, hollow stock (less weight and more kick) vs. solid stock. They both have a monoblock barrel, bullet guiding muzzle, and can use percussion caps, musket caps, or 209 shotgun primers. I have the hunter bolt and believe me it kicks like a mule when loaded to mag charges. The extra weight of the fire bolt would be an asset in that respect. But, it's a great rifle, shoots good and it won't break the bank.