6 mm caliber

This article lists firearm cartridges which have a bullet caliber between 6.0 millimetres (0.236 in) and 7.0 millimetres (0.276 in).

All measurements are in mm (in).

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)
6.5mm Bergmann 6.706 (.264) 22.1 (.87) 9.4 (.372) 9.3 (.368) 8.4 (.330) 7.2 (.285) 31.2 (1.23)
6.5x25mm 4.0 (.157) - - - - 29.7 (1.169)

Rifle cartridges

.24in (6.2mm)

Name Bullet Length Rim Base Shoulder Neck OAL
6mm Lee Navy 6.2 (.244) 60 (2.35) 11.4 (.448) 11.5 (.443) 10.2 (.402) 7.1 (.278) 79 (3.11)
.243 Winchester 6.1722 (.243) 51.9404 (2.0449) 12.0091 (.4728) 11.9608 (.4709) 11.5 (.454) 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) 1.560 in (39.6 mm) 12.0091 (.4728) 10.3911 (.4091) .458 (11.6) 6.9596 (.274) -
6 mm XC 6.1722 (.243) 48.2092 (1.898) 11.8872 (.468) 11.8364 (.466) 11.42 (0.450) 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) 2.78 (71) .532 (13.5) .508 (12.9) .445 (11.3) .263 (6.7) 3.58 (91)
6 mm SAW 6.17 (.243) 45.01 (1.772) 10.36 (.408) 10.26 9.72 6.63 65.44 (2.576)

.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)
.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)
.257 Weatherby Magnum 6.5 (.257) 65.0 (2.560) 13.6 (.534) 13.1 (.514) 12.6 (.496) 7.3 (.288) 81.5 (3.209)
.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) 75.69 (2.980)
6.5×53mmR 6.756 (.266) 53.59 (2.110) 13.40 (.527) 11.48 (.453) 10.75 (.423) 7.55 (.297) 77.56 (3.053)
6.5x54 mm Mannlicher-Schönauer 6.705 (.264) 53.65 (2.112) 11.52 (.454) 11.47 (.452) 10.87 (.428) 7.56 (.288) 76.77 (3.022)
6.5x55mm Swedish
(aka 6.5x55mm Krag)
6.7 (.264) 54.864 (2.16) 12.192 (.480) 12.17 (.479) 10.688 (.420) 7.468 (.294) 80.010 (3.15)
6.5×58mm Vergueiro 6.65 (.262) 57.85 (2.278) 11.78 (.464) 11.88 (.468) 10.94 (.431) 7.56 (.298) 81.50 (3.209)
6.5 x 68 6.70 (.264) 67.50 (2.657) 13.00 (.512) 13.30 (.524) 12.18 (.480) 7.60 (.299) 86.50 (3.408)
6.5-284 6.70 (.264) 55.118 (2.170) 12.014 (.473) 12.725 (.501) 12.065 (.475) 7.544 (.297) 81.991 (3.228)
.260 Remington 6.70 (.264) 51.7 (2.035) 12.0 (.473) 11.9 (.470) 11.5 (.454) 7.5 (.297) 71 (2.8)
6.5 mm Creedmoor 6.70 (.264) 48.8 (1.924) 12.01 (.473) 11.9 (.470) 11.7 (.459) 7.54 (.297) 71.6 (2.82)
6.5x47mm Lapua 6.70 (.264) 47 (1.9) 12.01 (.473) 11.95 (.470) 11.53 (.454) 7.41 (.292) 70 (2.8)
6.5 mm Grendel 6.70 (.264) 38.7 (1.524) 11.2 (.441) 11.14 (.439) 10.87 (.428) 7.44 (.293) 57.5 (2.264)
.264 Win Magnum 6.70 (.264) 64 (2.5) 13.5 (.532) 13.1 (.515) 12.5 (.491) 7.6 (.299) 85 (3.34)
6.5 x 52 mm Carcano 6.80 (.268) 52.50 (2.067) 11.42 (.450) 11.42 (.450) 10.85 (.427) 7.52 (.296) -

See also

References

  1. 6mm Rem data from Accurate Powder
  2. Barnes, Frank C. (2006) [1965]. Skinner, Stan, ed. Cartridges of the World (11th Edition ed.). Iola, WI, USA: Gun Digest Books. pp. 380,408,410. ISBN 0-89689-297-2.
  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