Odd that nobody seems to mention .410 slugs when discussing ammo for these .410 handguns... Maybe not suitable for HD, but the Brenneke slug in this caliber is powerful and is loaded in a 2.5" shell. Feels like the 3" W-W slug on firing. Perhaps suitable for woods walking?
Kaaskop49
Shield #5103
Way back in the day Springfield made the over-under break open M6 survival rifle in .22LR/.410 and .22 Hornet/.410 versions. The idea was to use the .410 with bird shot for birds, etc. A .410 slug could be used for larger game, but realistically it was limited to about 30-35 yards due to accuracy considerations and it offered all of the knock down power of a .380 ACP.
Later, they went to .22LR/.45 Colt and .22 Hornet/.45 Colt chambering to allow both .410 and .45 Colt rounds to be used. It was still a mixed bag however as while the .45 Colt offered significant performance in Tier 2 (23,000 psi) and Tier 3 (32,000 psi) loads, making it very effective on deer at much longer ranges, the rifled barrels caused to the shot patterns to open up rapidly and changed it from a 20-25 yard bird gun to a 10-15 yard bird gun.
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The moral of the story is that if you've got the option of a .45 ACP with a 185-230 gr bullet, or a .45 Colt with a 255-300 grain bullet in addition to a .410 slug, take the .45 ACP or .45 Colt with their much heavier and faster bullet every time. No one ever tries to argue the .380 ACP is more effective than a .45 ACP.
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Choosing between the .45 ACP and the .45 Colt, it really depends on the .45 Colt load. You'll find .45 Colt in very mild "cowboy" loads that just meet the "floor" for competition, as well as SAAMI spec loads designed for older revolvers as well as "Ruger only" loads intended for modern high strength revolvers, break open carbines, and strong over actions like the Winchester Model 92 and Winchester Model 94 and their clones.