The Firing Line Forums - View Single Post - 870 7-shot won't take 7!!!!

Mike Baugh · July 5, 1999, 12:48 PM

Think of it this way , your gun has an 18" barrel and your follower in the magazine is about 5/8" thick [for the factory version] , when you compress the spring fully the follower will stop at the small diameter shoulder at the end of the tube , roughly 1/4" short from the end of the muzzle . 18" barrel - 5/8" follower - 1/4" shoulder = 17 1/8" , 17 1/8" divided by 2 3/4" shell = 6.23 shells in the tube . I would swap out the stock follower with a Scattergun Technoligies follower , this would keep you from jamming the spring by trying to force in an extra shell . The Marine Magnums are great guns , I love mine . Good luck , Mike...

July 5, 1999, 12:48 PM	#7
Mike Baugh Senior Member Join Date: October 28, 1998 Location: Indiana Posts: 405	Think of it this way , your gun has an 18" barrel and your follower in the magazine is about 5/8" thick [for the factory version] , when you compress the spring fully the follower will stop at the small diameter shoulder at the end of the tube , roughly 1/4" short from the end of the muzzle . 18" barrel - 5/8" follower - 1/4" shoulder = 17 1/8" , 17 1/8" divided by 2 3/4" shell = 6.23 shells in the tube . I would swap out the stock follower with a Scattergun Technoligies follower , this would keep you from jamming the spring by trying to force in an extra shell . The Marine Magnums are great guns , I love mine . Good luck , Mike...