Great story and history of the .44 SPEC AND ITS RELATION TO THE .45 COLT. I loved it. i just learnd today from this site about the ''1917 revolver' made towards the end of WW I to shoot the 4.5ACP ROUND SPECIFICALLY, BECAUSE THEY COULD NOT MAKE ENOUGH 1911 .45 PISTOLS! But today's AMMO AND GUNS ARE VERY DIFFERENT. The .44 Spec ammo doesn't hold a candle to the .45 Colt ammo and guns of today, UNLESS YOU ARE LOOKING AT or comparing with .45 COLT COWBOY LOADS, at least as far as manufactured guns and ammo goes. In my ballistics file, the .44 SPEC MAX'S OUT AT 558 ft. lb. ( UNDERWOOD), 645 (Grizzly), 555 (Garrett), and 529 (Buffalo BORE). THESE ARE ALL A FAR CRY FROM THE .45 COLT AMMO OF 1,405 FT LBS. (Garett), and 1,344 (Buffalo Bore). In addition, the .45 colt cylinders re extremely robust and can handle these very high powered ammo. even Buffao BORE POINTS OUT that the Ruger BLACKHAWKS (ON THE FULL SIZED FRAMES) and Redhawks are the only guns to use and shoot their vey high powered .45 Colt ammo. So, the days of what you call weaker/thinner .45 Colt cylinders are long gone.
In addition, I own a Ruger .5.5" BLackhawk Flattop Convertible, and these Ruger .45 COLT GUNS WERE BULT ON THE .357 FRAME, SO THEY ARE NOT THE FULL SIZED .45 Colt, and BUFFALO Bore has a vey specific waning about using this version of the RUGER .45 COLT GUNS AND TO NOT SHOOT THEIR VERY POWERFUL .45 Colt LOADS. Note the this concern is ABOUT THE FRAME, AND NOT THE CYLINDER. BUFFALO BORE MAKES THREE VERY POWERFUL .45 COLT loads, AND I have shot the lower of these three with my BLACKHAWK, with no issues at all, excpt that it kicks like mad, but it has done zeo damage to the gun, or to me. Specifically, this ammo is the one that generates 1,124 ft lbs. ( at 1,450 fps) of ME. I normally shoot my guns with one hand only, with my arm extended all the way out. But when I shoot this load, I put on a glove and use two hands! I can't imgine what thd other two loads would be like! But I recently PUT A BID ON A RUGER .45 Colt REDHAWK, so I may find out soon.
iFf you or anyone else would like a copy of my balliatic file (PDF), just messsage me here, and I will send you one. Since you reload all your own ammo, you my not be interested in my file, which has over 4,000 entries (covers 35 handgun caliber and 26 rifle ones) where each entry is a link to a website that sells that particular ammo. The ammo's ballistics are given in each entry for that ammo, as well as its current pricing and availability and the bullet type, and if the retailer supplies any ammo rating I list that too.