[Lucky]

For various sizes of shot, what pistol caliber do they roughly equate to? For instance are .32ACP and 00 roughly equivalent?

[Vicious-Peanut]

I've heard 00 compared to as 40 grain hollow point .22s energy wise (not diameter) before but I really have no idea.

[rcmodel]

Buckshot sizes.
000 = .36"
00 = .33" = 54 Grain weight
0 = .32" = 48 Gr.
#1 = .30" = 40 gr.
#2 = .27"
#3 = .25"
#4 = .24"
FF = .23"
F = .22"
TT = .21"
T = .20"

A single 00 Buck pellet traveling at 1,290 fps would have about 200 ft/lb of energy.
About the same as a .380 ACP, or about double that of a .22 LR standard velocity load.

The full charge of 12 00 pellets would have about 2,400 ft/lb energy.
About the same as many high-power rifles.

http://i81.photobucket.com/albums/j219/rcmodel/KTOG/1224.gif
rcmodel

[Gordon]

Actually a 00 buck pellet from full power ammo is very similar to a .32acp FMC bullet (950fps) up to about 35 yards, after that the .32acp takes off.Talking terminal effect here.

[MCgunner]

The ball would have less weight than a .32 bullet and more velocity, so I'd think, without breaking out the scale and cutting open a shotgun shell, and doing the math, I'd have to say Gordon is probably right or close enough for gov'ment work.

[Lucky]

Mod Firearms site back up so I can get the numbers I usually refer to. Unfortunately they're all metric. Also I'm assuming all loads are 1200fps, which can't be quite true.

Anyone know how to find out joules or ft/lb from the numbers? It'd come in handy.

So here goes:

#2 (x15) (~.27) = 1.90g @ 366m/s
.22LR = 2.6g @ 220m/s

#1 (x10) (~.30) = 2.83g @ 366m/s
.25 Auto = 2.925g @ 245m/s

O (x9) (~.32) = 3.15g @ 366m/s
32 Auto = 3.9g @ 296m/s

OO (x8) (~.33) = 3.54g @ 366m/s

OOO (x6) (~.36) = 4.73g @ 366m/s
.380 Auto - 9mm short (9x17) = 5.85g @ 305m/s

http://www.modernfirearms.net/ammo/am02-e.htm

[ArchAngelCD]

366m/s = 1201 fps (actually, 1200.787)

1 ft/lb = 1.36 joules


The formula to find the muzzle velocity is: (kinetic energy)
E = .5 • m • v2

v is the velocity of bullet (in meters per second)
m is the mass of bullet (in kilograms)
E is the energy (in joules)

If I remember correctly It's been a very long time since I went to school!!

[Mannix]

Here's (http://www.pyramydair.com/site/articles/formulas/) a handy energy calculator.

Buckshot pellet weights:
000 .36" 68gr
00 .33" 54gr
0 .32" 48gr
#1 .30" 40gr
#2 .27" 29.5gr
#3 .25" 23.5gr
#4 .24" 20.5gr

Energy will vary by load, but most manufacturers have ballistics data published on their website.

[rantingredneck]

Looking beyond the science of it all, it would truly suck to take a charge of 00 or 000 buck in the chest at HD ranges.

I've seen the internal damage done to a deer at 20 yds with 00 buck. I'd hate to be on the receiving end of that.