4 mm caliber

4 mm caliber
4 mm caliber
	An example of a 4-mm cartridge, a 4.25mm Liliput
	«3 mmFirearm cartridges 5 mm»

This article lists firearm cartridges which have a bullet in the 4 millimetres (0.16 in) to 4.99 millimetres (0.196 in) caliber range.

All measurements are in mm (in).

Rimfire cartridges

Name	Bullet	Case length	Rim	Base	Shoulder	Neck	Overall length
.17 Mach 2	4.368 (.172)	18.14 (.714)	6.99 (.275)	5.74 (.226)	5.74 (.226)	4.57 (.180)	25.4 (1.0)
.17 HMR	4.368 (.172)	26.87 (1.058)	6.99 (.275)	5.74 (.226)	5.74 (.226)	4.57 (.180)	34.26 (1.349)
.17 PMC/Aguila	4.4 (.172)	15.0 (.591)	6.9 (.271)	-	-	-	25
.17 Winchester Super Magnum	4.4 (.172)	30.5 (1.200)	-	-	-	-	-
4.5×26mm MKR	4.5 (.177)	-	-	-	-	-	-
4mm M20 (4×10 mm)^[1]	4.89 (.1925)	7.13 (.28)	5.69 (.224)	5.03 (0.198)	-	-	9.1 (0.358)

Name	Bullet	Case length	Rim	Base	Shoulder	Neck	Overall length
4.25mm Liliput	4.242 (.167)	10.41 (.410)	5.029 (.198)	5.029 (.198)	-	5.029 (.198)	14.22 (.560)
4.38×30mm Libra	4.28 (0.169)	30.10 (1.185)	7.65 (0.301)	7.56 (0.298)	6.88 (0.271)	4.90 (0.193 )	41.00 (1.614)
4.5x40mmR^[2] for SPP-1	4.5 (0.18)	40	8.29	7.53	6.75	5.11	144.25
4.6×30mm HK	4.65 (.183)	30.50 (1.201)	8.00 (.315)	8.02 (.316)	7.75 (.305)	5.31 (0.209)	38.50 (1.516)

Name	Bullet	Case length	Rim	Base	Shoulder	Neck	Overall length
.17 Bumble Bee	4.368 (.172)	23.37 (.920)	10.36 (.408)	8.890 (.350)	8.636 (.340)	4.547 (.197)	-

Name	Bullet	Case length	Rim	Base	Shoulder	Neck	Overall length
.17 Hornet	4.368 (.172)	35.6 (1.400)	8.9 (.350)	7.6 (.299)	7.3 (.288)	4.9 (.193)	-
.17 Mach IV	4.368 (.172)	35.6 (1.40)	9.6 (.378)	9.6 (.378)	9.2 (.361)	5.2 (.206)	-
.17 Remington	4.368 (.172)	45.62 (1.796)	9.601 (.378)	9.550 (.376)	9.042 (.356)	5.055 (.199)	55.118 (2.170)
.17 Remington Fireball	4.368 (.172)	36.07 (1.420)	9.60 (.378)	9.57 (.3769)	9.33 (.3673)	5.23 (.206)	-
.17 Ackley Bee	4.4 (.172)	34 (1.35)	10.4 (.408)	8.9 (.349)	8.5 (.334)	5.0 (.195)	-
4.85×49mm	5.0 (.197)	48.9 (1.925)	9.6 (.376)	9.5 (.375)	9.0 (.353)	5.6 (.220)	62.4 (2.455)