Cousin Pat
New member
We're often advised to choose a rifle for SD over a handgun in circumstances where we have a choice. (Let's leave the shotguns out of the discussion for now). So let's put an attacker far enough away to shoulder a rifle but close enough for a pistol to be accurate -- let's say 15 yards. Two choices:
1 -- .223 SA rifle: 55 gr JHP @ 3200 fps = 1,250 ft. lbs energy at muzzle
2 -- .357 mag revolver: 125 gr JHP @ 1450 fps = 580 ft. lbs energy at muzzle
So even "just a varmint" rifle has over 2X the energy of one of the classic "one-stop" handgun cartridges.
So we all holster the handgun and shoulder the rifle, right?
But what about this idea of "stopping power"? There is a Taylor index that tries to capture this by working in the bullet diameter to the comparison. I calculate the Taylor index for the .223 at 6, while the .357 comes in at 9, a 50% advantage to the revolver. (By the way, .45 ACP comes in at a 13).
It seems to me that the "get your rifle" idea works ONLY when you have some warning and some distance, say 50 yards +.
At distances less than 50 yards, only a repeating shotgun, not a rifle, seems to offer benefits over the handgun: Even a 20 gauge slug (say 325 gr@1600 fps =) has 1850 ft-lbs muzzle energy, Taylor = 47. (Buckshot might put less mass on target but offer wider coverage). By either the muzzle-energy measure or the Taylor index measure, the 20g far surpasses even a .44 Mag (1200 ft-lbs, index 22).
Am I thinking about this corrrectly?
1 -- .223 SA rifle: 55 gr JHP @ 3200 fps = 1,250 ft. lbs energy at muzzle
2 -- .357 mag revolver: 125 gr JHP @ 1450 fps = 580 ft. lbs energy at muzzle
So even "just a varmint" rifle has over 2X the energy of one of the classic "one-stop" handgun cartridges.
So we all holster the handgun and shoulder the rifle, right?
But what about this idea of "stopping power"? There is a Taylor index that tries to capture this by working in the bullet diameter to the comparison. I calculate the Taylor index for the .223 at 6, while the .357 comes in at 9, a 50% advantage to the revolver. (By the way, .45 ACP comes in at a 13).
It seems to me that the "get your rifle" idea works ONLY when you have some warning and some distance, say 50 yards +.
At distances less than 50 yards, only a repeating shotgun, not a rifle, seems to offer benefits over the handgun: Even a 20 gauge slug (say 325 gr@1600 fps =) has 1850 ft-lbs muzzle energy, Taylor = 47. (Buckshot might put less mass on target but offer wider coverage). By either the muzzle-energy measure or the Taylor index measure, the 20g far surpasses even a .44 Mag (1200 ft-lbs, index 22).
Am I thinking about this corrrectly?