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James K · August 19, 2011, 11:54 AM

Since 9mm Browning Long is hard to find and rather expensive (AFAIK, Norma still makes it at about $40 a box), it might make more sense to leave the gun in .380. If the gun is converted back, and ammo is not available, remember that the 9mm BL case is nothing but a shortened .38 ACP case, so the former can be made from .38 Super cases by simply trimming them 1/10 inch to .80". The 9mm BL uses a .355" bullet.

BTW, in case you want to buy and install a 9mm BL barrel, you will need a new recoil spring; they were cut when the guns were converted to .380.

Jim

August 19, 2011, 11:54 AM	#9
James K Member In Memoriam Join Date: March 17, 1999 Posts: 24,383	Since 9mm Browning Long is hard to find and rather expensive (AFAIK, Norma still makes it at about $40 a box), it might make more sense to leave the gun in .380. If the gun is converted back, and ammo is not available, remember that the 9mm BL case is nothing but a shortened .38 ACP case, so the former can be made from .38 Super cases by simply trimming them 1/10 inch to .80". The 9mm BL uses a .355" bullet. BTW, in case you want to buy and install a 9mm BL barrel, you will need a new recoil spring; they were cut when the guns were converted to .380. Jim Last edited by James K; August 19, 2011 at 12:03 PM.