6 MM CALIBER

This article lists firearm cartridges which have a bullet caliber between 6 mm (.236 in) and 7 mm (.284 in).

★ 'Length' refers to the cartridge case length.

★ 'OAL' refers to the overall length of the cartridge.
All measurements are in mm (in).

Contents

Pistol cartridges

Rifle cartridges

Up to .243in (6.1mm)

.25in (6.5mm)

.264in (6.6mm) and up

See also

References

Pistol cartridges

Name	Bullet	Length	Rim	Base	Shoulder	Neck	OAL
.25 ACP	6.375 (.251)	15.62 (.615)	7.67 (.302)	7.06 (.278)	N/A	7.06 (.278)	23.11 (.910)
6.5 mm Bergmann	6.706 (.264)	-	-	-	-	-	-

Rifle cartridges

Up to .243in (6.1mm)

Name	Bullet	Length	Rim	Base	Shoulder	Neck	OAL
.243 Win	6.1722 (.243)	51.9404 (2.0449)	12.0091 (.4728)	11.9608 (.4709)	13.82 (.544)	7.0104 (.276)	68.8289 (2.7098)
6 mm Remington (.244 Remington)[1]	6.185 (.2435)	56.72 (2.233)	11.99 (.472)	11.96 (.471)	10.89 (.429)	7.01 (.276)	71.76 (2.825)
.240 Apex [2] .240 Magnum Rimless .240 Magnum Flanged H&H 240 Apex .240 Belted Nitro Express	6.223 (.245)	63.25 (2.49)	11.86 (.467)	11.43 (.450)	10.24 (.403)	6.96 (.274)	81.53 (3.21)
6 mm PPC [3]	6.172 (.243)	38.48 (1.515)	11.30 (.445)	11.20 (.441)	10.95 (.431)	6.654 (.262)	53.34 (2.100)
6 mm BR Remington	6.1722 (.243)	-	12.0091 (.4728)	10.3911 (.4091)	-	6.9596 (.274)	-
6 mm XC	6.1722 (.243)	48.2092 (1.898)	11.8872 (.468)	11.8364 (.466)	-	6.8834 (.271)	71.3232 (2.808)
.243 WSSM	6.1722 (.243)	42.42 (1.670)	13.59 (.535)	14.1 (.555)	13.82 (.544)	7.39 (.291)	59.94 (2.360)
.240 Weatherby Magnum [4]	6.18 (.243)	63.40 (2.496)	12.00 (.472)	11.50 (.453)	10.40(.429)	6.90 (.272)	80.00 (3.10)
.244 H&H Magnum	6.223 (.245)	-	-	-	-	-	-

.25in (6.5mm)

Name	Bullet	Length	Rim	Base	Shoulder	Neck	OAL
.25-20 Winchester	6.55 (.258)	33.78 (1.33)	10.36 (.408)	8.86 (.349)	8.46 (.333)	6.96 (.274)	40.44 (1.592)
.25-35 Winchester [5]	6.55 (.258)	51.89 (2.043)	12.85 (.506)	10.73 (.422)	9.26 (.365)	7.15 (.282)	64.77 (2.55)
.250-3000 Savage[6]	6.553 (.258)	48.46 (1.912)	12.01 (.473)	11.91 (.469)	10.51 (.414)	7.26 (.286)	63.88 (2.515)
.257 Roberts [7]	6.553 (.258)	56.72 (2.233)	12.01 (.473)	11.99 (.427)	10.92 (.430)	7.36 (.290)	70.49 (2.775)
6.5 mm Grendel	6.5 (.256)	38.7 (1.524)	11.2 (.441)	11.14 (.439)	10.87 (.428)	7.44 (.293)	57.5 (2.264)
.25-06 Remington [8]	6.541 (.2575)	63.35 (2.494)	12.01 (.473)	11.94 (.470)	11.20 (.441)	7.37 (.290)	82.55 (3.250)
.256 Win Magnum	6.528 (.257)	32.54 (1.281)	11.18 (.440)	9.677 (.381)	9.347 (.368)	6.528 (.257)	40.39 (1.590)

.264in (6.6mm) and up

Name	Bullet	Length	Rim	Base	Shoulder	Neck	OAL
6.5 x 50 SR Arisaka	6.705 (.264)	50.39 (1.984)	11.84 (.466)	11.35 (.447)	10.59 (.417)	7.34 (.289)	-
6.5x55 mm Krag 6.5x55 Swedish	6.7 (.264)	54.864 (2.16)	12.192 (.480)	12.17 (.479)	10.688 (.420)	7.468 (.294)	80.010 (3.15)
6.5 x 68	6.70 (.264)	75.02 (2.956)	13.00 (.512)	13.30 (.524)	12.18 (.480)	7.60 (.299)	86.50 (3.408)
6.5 x 52 mm Carcano	6.807 (.268)	52.50 (2.067)	11.42 (.450)	11.42 (.45)	10.85 (.427)	7.52 (.296)	-

See also

★ 2 mm (.079 in) - 3 mm (.118 in) - 4 mm (.157 in) - 5 mm (.197 in) - 6 mm (.236 in) - 7 mm (.276 in) - 8 mm (.315 in) - 9 mm (.354 in) - 10 mm (.394 in) - 11 mm (.433 in) - 12 mm (.472 in) - 13 mm (.5118 in)

★ List of cartridges by caliber

★ List of handgun cartridges

★ List of rifle cartridges

References

1. 6mm Rem data from Accurate Powder
2. Cartridges of the World, , Frank C., Barnes, Gun Digest Books, 2006,
3. 6mm PPC data from Accurate Powder
4. .240 Wby data at Accurate Powder
5. ".25-35 Winchester data" from Accurate Powder
6. ".250-3000 Savage"data from Accurate Powder
7. ".257 Roberts" data from Accurate Powder
8. ".25-06 Remington" data from Accurate Powder