Eric's Shotshell Sizes Page

Note: Actual number of pellets and weights will vary according to gauge.

SHOT SIZE TABLE
Gauge						Lead Shot Size USA/STD	Pellet Diameter (Inches)	Pellet Diameter (Millimeter)	Number of Pellets Per Ounce
10	12	16	20	28	.410
Shell Length
---	---	---	---	---	2½"
---	2¾"	2¾"	2¾"	2¾"	---
2 7/8"	---	---	---	---	---
---	3"	---	3"	---	3"
3½"	3½"	---	---	---	---
Slugs
	x		x		x	Sabot	250-385 grains
	x					BRI Sabot	5/8--1 oz
x	x	x	x	x	x	Slugs	1/5--1 3/4 oz
Buckshot Sizes
	x					Tri-Ball 12 (12 Gauge)	0.60	15.2	1.4
			x			Tri-Ball 20 (20 Gauge)	0.52	13.2	2.1
	x				x	#000 Buck ("triple-aught")	0.3600	9.1440	6.2
							0.346	8.79	7
							0.332	8.44	8
x	x		x			#00 Buck ("double-aught")	0.3300	8.3820	8
	x					#0 Buck ("single-aught")	0.3200	8.1280	9
	x	x	x			#1 Buck	0.3000	7.6200	11
	x	x	x			#1 Buck	0.298	7.57	11
			x			#2 Buck	0.2700	6.8580	14
			x			#2 Buck	0.269	6.83	15
	x		x			#3 Buck	0.2500	6.3500	18
	x		x			#3 Buck	0.244	6.3	20
	x		x		x	#4 Buck	0.2400	6.0960	21
	x		x		x	#4 Buck	0.227	5.77	25
						F	0.22	5.59	27
							0.213	5.41	30
							0.203	5.16	35
						T	0.200	5.08	36
Birdshot Sizes
						F	0.220	5.59	27
						TT	0.210	5.33	---
							0.205	5.20	---
							0.203	5.16	35
x	x					T	0.200	5.08	36
x	x					T	0.191	4.93	40
x	x					BBB	0.190	4.83	44
	x				x	3 DD/12 BB
	x				x	4 DD/16 BB
x	x					BB	0.180	4.57	50
						Air Rifle	0.177	4.50	---
						B	0.170	4.32	---
	x		x			#1 Bird	0.160	4.06	72
	x		x			#1 Bird	0.158	4.00	---
x	x	x	x			#2 Bird	0.150	3.81	87
x	x	x	x			#2 Bird	0.148	3.75	---
	x		x			#3 Bird	0.140	3.56	108
							0.138	3.50	---
							0.134	3.40	---
x	x	x	x		x	#4 Bird	0.1290	3.2766	135
x	x	x	x		x	#4 Bird	0.128	3.25	140
x	x	x	x	x	x	#5 Bird	0.1200	3.0480	170
x	x	x	x	x	x	#5 Bird	0.118	3.00	---
x	x	x	x	x	x	#6 Bird	0.1090	2.7686	225
							0.108	2.75	---
							0.107	2.72	240
							0.102	2.59	270
x	x		x	x	x	#7 Bird	0.100	2.54	291
							0.098	2.50	---
							0.094	2.40	---
	x	x	x	x	x	#7½ Bird	0.0940	2.3876	350
	x	x	x	x	x	#8 Bird	0.0890	2.2606	FourTen
							0.089	2.25	---
							0.087	2.21	472
	x			x	x	#8½ Bird	0.0850	2.1590	497
	x			x	x	#8½ Bird	0.083	2.10	---
	x		x	x	x	#9 Bird	0.0790	2.0066	585
	x		x	x	x	#9 Bird	0.080	2.03	---
						#10 Bird	0.070	1.78	848
							0.070	1.78	850
							0.069	1.75	---
						#12 Bird	0.0500	1.2700	2300
Steel Shot Sizes
						F (buck)	0.220	5.59	39
x	x					T (buck)	0.200	5.08	53
						FF (bird)	0.230	5.84	35
x	x					BBB (bird)	0.190	4.83	62
x	x					BB (bird)	0.180	4.57	72
						B (bird)	0.170	4.32	86
	x					#1 (bird)	0.160	4.06	103
x	x	x	x			#2 (bird)	0.150	3.81	125
	x		x			#3 (bird)	0.140	3.56	158
	x	x	x			#4 (bird)	0.130	3.30	192
	x		x			#5 (bird)	0.120	3.05	243
	x		x	x	x	#6 (bird)	0.110	2.79	315
	x		x	x		#7 (bird)	0.100	2.54	423
	x					#7½ (bird)	0.095	2.41	490
	x					#8 (bird)	0.090	2.29	686
						#9 (bird)	0.080	2.03	892

	Copyright © Eric Michael Sundeen - September 17, 2008
	SundSoft, LLC ® ™ All rights reserved.
	Page last updated: July 11, 2021