Romulus augustulus
kiwifarms.net
- Joined
- Apr 6, 2023
the light load was called ".41 Police". the "Magnum" cartridges struggled in getting approval by the large police departments well into the 80s because of the fear of "militarized police". That's why all the various +p .38 loads were developed.The hotter 10mm Stuff based on the original load pressures is in the low 700s for muzzle energy in ft./lbs. Some of the really hot stuff is getting in the high 700s to low 800s for boutique bear loads. Most 10mm is loaded to similar pressures as the FBI Light Load developed by Federal for the FBI duty ammo contract they got in the 90s, which is in the low 500s for muzzle energy and was the load the .40 S&W was based on.
Elmer Keith developed two loads when he created the .41 Magnum: a 230gr semi-wadcutters at about 1200fps and 1000 ft./lbs. for handgun hunting, and a 180gr load at about 950fps and roughly 520 ft./lbs. for law enforcement use. I could have the exact specs wrong, but he developed a hotter, heavier load for hunting and a lighter load for law enforcement which is close to the modern. 40 S&W. However, there are much hotter loads available in .41 Mag these days. I've got a box of Barnes Vort-Tx 180gr solid copper hollow points at 1520fps and a box of Underwood 230gr Keith style semi-wadcutter gas check hard cast lead bullets at 1450fps. The Underwoods in particular are quite a handful and are only a tad slower than the lighter solid copper Barnes bullets. I forget the exact muzzle energy of each, but they're both well above 900 ft./lbs.
Unfortunately the .41 was often chambered in .44 mag sized guns which didn't help adoption. too heavy a gun for small officers and the .41s were even heavier than the .44s because of thicker barrels and cylinders. A good medium framed revolver would have helped sales and adoption. the Colt Python was supposed to be offered in .41 but the lock-work of the gen 1 python could not handle it (or .357 for that matter)
The departments that did adopt the .41 were mainly in the southwest and rural parts of the south and midwest. Lousiville KY PD authorized them for service with the light load (and SWAT got 4 inch M/29 .44mags at one point).
