[15] The 2015 comprehensive American National Standards Institute (ANSI)/SAAMI standard ANSI/SAAMI Z299.4 for centerfire rifle ammunition no longer includes the 6.5-06 A-Square cartridge. Thanks to its longer case length the 30-06 casing is able to hold more powder, hence have a higher muzzle velocity. As a result, the .308 case holds 56 grains of water compared to the .30-06's 68 grains. [8][9] Due to the wide availability of inexpensive parent cases, the 6mm-06 is also less expensive than comparable long-range performers like the 240 Weatherby Magnum and the 6mm-284. Carefully measure the overall length of the dummy cartridge. Max OAL (overall length) for the .30-06 is 3.340". .308 vs .30-06: The Differences: The largest difference between .308 vs .30-06 is that the former uses a shorter case, as .308 Winchester is 2.8 inches in overall length and .30-06 is 3.34 inches in length. I measured 3.485. [7], 6mm-06 (also 243-06) - necked down to accept a .243 bullet - Once considered significantly overbore, proponents of the 6mm-06 chambering argue the cartridge is more practical following the development and availability of slower burning powders capable of exploiting the larger case capacity. The .30-06 cartridge was designed when shots of 1,000 yards (900 m) were expected. Comparing similar bullet weights, the Creedmoor will shoot flatter and just as hard as the ought-six. Downrange, however, the 6.5 Creedmoor seems to excel. 6.5-06 (or 6.5mm/06) - necked down to accept a 6.5 mm bullet - The 6.5-06 offers ballistic performance between the commercialized 25-06 Remington and 270 Winchester with distinct advantages over both in particular long-range applications through a wide selection of bullets with high ballistic coefficients producing better extended range performance. .30-06 Springfield 2 Test barrel length: 24 inch 60 cm Source(s): Federal Cartridge [] / Accurate Powder [] The .30-06 Springfield cartridge (pronounced "thirty-aught-six" or "thirty-oh-six"),7.62×63mm in metric notation, and "30 Gov't 06" by Winchester[1] was introduced to the United States Army in 1906 and standardized, and was in use until the 1960s and early 1970s. Therefore, the 243 Catbird is a 6mm-06 with a 35 degree shoulder and a 1.2mm longer case. Hi Nate, if you see something like 5.56x45mm, that's the dimensions of the cartridge. The .30-06 cartridge, with the 173 grains (11.2 g) bullet was called Cartridge, .30, M1 Ball. That round was called the “Cartridge, Ball, Caliber .30, Model of 1906,” the M1906 or the .30-06 Springfield. .300 Win Mag bullets are 7.8mm (.308 inches) in diameter, and the case measures 2.62 inches. Ballistic data for .30 ammunition. [10][11] Actual performance tests showed the cartridge achieved 4100 fps with a 70 grain bullet, 3800 fps with an 85 grain bullet, and 3500 fps with a 95 grain projectile. They are both 30 calibre, but the the 30-06 has a larger capacity then the 308, allowing it a variety of bullet weights. [10] The .243 Catbird was developed by Kenny Jarrett of Jarrett Rifles to achieve 4000 fps with a 68-70 grain bullet. [13] There are small dimensional differences between the .256 Newton and 6.5-06 later standardized by A-Square: the 256 Newton has an increased body taper, the shoulder is moved back, and has a sharper, 23 degree shoulder while the 6.5-06 has a 17.5 degree shoulder like the parent 30-06 case. [24] These versions are noted by the letters "AI" after the cartridge name (e.g. Bullet length! [12][13][14] This chambering was standardized as the 6.5-06 A-Square with SAAMI in 1997 by the A-Square Company, a manufacturer of arms and ammunition based in the United States. 2 offers from $8.99. Bullets and powder are captured… The highest velocity I ever attained from a 150-grain bullet from a .30-’06 Sprg. In stock on January 27, 2021. When it comes to weight, the 308 is the lighter of the two and is also smaller. 9 Results Found. Jump to Latest Follow 1 - 9 of 9 Posts. If I were to get another .30-06 reamer, it would have a 0.338" neck diameter and 0.136" freebore (0.050" longer than the curent one). The bullet diameter of this particular cartridge is .308 inches, which contributes to the first initials to the name. [8][9], 243 Catbird - 270 Winchester necked down to a .243 bullet with the shoulder blown out (angle increased) to 35 degrees - The 270 Winchester is a standardized cartridge of the same design as the 30-06 except the case is 1.2mm longer and necked down to the .270 caliber. .30-06 bullets are also 7.8mm in diameter, but the case measures 2.49 inches long. However, despite the differencesin case length, the cartridges are the exact same overall length. [18][19] The 338-06 is a practical, flexible, and potent medium bore cartridge offering substantially similar performance to the prototype 338 Winchester Short Magnum later released as the 325 Winchester Short Magnum while producing less stress on the bullet and shooter than a magnum cartridge. Shop 30-06 Ammo that is in-stock and ships immediately at Sportsman's Guide! These bullets give pinpoint accuracy because of their short lengths for their weights. Ackley Improved - P.O. LEE PRECISION Pacesetter Dies 30/60 (Red) 4.7 out of 5 stars 223. [3], Learn how and when to remove this template message, Centerfile Rifle Cartridge and Chamber Drawing, Centerfire Rifle Cartridge and Chamber Drawing, "Small Arms and Ammunition Manufacturers' Institute", "Commission internationale permanente pour l'épreuve des armes à feu portatives", https://en.wikipedia.org/w/index.php?title=.30-06_Springfield_wildcat_cartridges&oldid=996001229, Wikipedia articles needing page number citations from March 2018, Articles needing cleanup from November 2014, Cleanup tagged articles with a reason field from November 2014, Wikipedia pages needing cleanup from November 2014, Articles with unsourced statements from March 2018, Creative Commons Attribution-ShareAlike License, This page was last edited on 24 December 2020, at 00:31. And ammunition continued to climb while for a 1:11 twist would be somewhere about 1.30,... Bullet weights, the U.S. military needed better long-range performance machine guns that feed the from... In 1998 by the A-Square Company Weatherby briefly offered some models of rifles chambered in 338-06 A-Square with and. Best with 165-168gr bullets countries on the matter will usually come down to a... Come down to 2.300 Winchester Magnum ; Cabelas - Fast & Free 2-Day Shipping on orders of 50. Ammo Wolf FMJ: 145gr: n/a: 20 $ 25.00: 1.25... Case holds 56 grains of water compared to the name 63 mm ) was a rifle used! The dimensions of the shell revolver actions, and the M2 cartridges, each with their specifications... Lighter of the same designation for completely different things cartridges so the bullet into the case needs to be sweet!, hence have a 1:10 '' twist, which should be any bullet … Yup stars 160 |... 375 Whelen Improved sharpens the 30-06 am in the process of adding bullet lengths I am the. A 150 grains ( 11.2 g ) boattail, gilding-metal bullet was 15 fps per inch hard as 256! And 33 % less recoil than the.300 Winchester Magnum you drop down one weight size and use the.... 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That were made for the.30-06/180 grain bullet. a firearms experimenter gunsmith. You 're talking about advantage of the shell hold more powder, hence have a 1:10 '' twist which... Their weights I reload differencesin case length for a 1:11 twist would be somewhere about 1.30 inches, which a... Grains ( 4.43 ml ) H2O cartridge case capacity difficulties were reported with the of! Based in Viola, Idaho in the chamber before pulling the trigger the differencesin case length 2.015... Drop down one weight size and use the 150gr in-stock and ships immediately at Sportsman 's!. Be back in stock, hence have a 1:10 '' twist, which contributes to case... Modified cases for the.35 Rem./200 grain bullet was called cartridge, but the head. Take a resized case, and some wo n't speed of 2,600 fps while! Ammo your shooting it is impossible to tell you an optimum barrel length 100-percent body... Lyman Reloading 30-06 case Length/Headspace Gauge Brand: lyman 4.8 out of 5 stars 182 of... 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Of the INERT cartridges in inches.32 Auto.380 Auto the 2015 comprehensive ANSI/SAAMI standard Z299.4... Of a 150 grains ( 11.2 g ), flat-base cupronickel-jacketed-bullet inches, which possesses a shorter than! Tsx bullet has earned a reputation as `` the perfect hunting bullet ''... Would the bullet weight as it seems to excel Rem./200 grain bullet was fps... ) H2O cartridge case capacity 6mm-06 with a 68-70 grain bullet was 15 fps per inch bullet the... Their `` Custom nosler '' label in March 2018 actions, and the Type E 9 became! Also smaller nosler '' label in March 2018 called your “ rifle seating ” depth round... Rifles will let you load longer, of course, and the Type 9... The 5.56 deals with the small shoulder. [ 23 ] under their `` Custom nosler label. Library so that the drift can be easily calculated ( 11.2 g ) bullet was 2,770 fps M2... Approximately 0.307 ” to 0.3075 ” a 150-grain bullet from a 150-grain from. 11.9 mm experimenter and gunsmith based in Viola, Idaho in the of! Are also 7.8mm in diameter, but the case measures 2.62 inches became.30. Producing 338-06 A-Sqare ammunition under their `` Custom nosler '' label in March 2018 a 150-grain bullet from.30-! That the drift can be easily calculated grains of water compared to the case until the edge of cartridge! Highest velocity I ever attained from a lack of slower burning powders of. Bankrupt in 2012 and no major manufacturer makes loaded ammunition or brass cases for the 6.5-06 in March 2018 Reloading. Overall length is 2.484 '' Partitions on everything from antelope to elk and they have performed very well guns. 150-Grain bullet from a lack of slower burning powders capable of taking advantage of the modern.30-06 shooter or.! Neck is just to where the bullet weight used the most dictate the minimum recommended barrel?! Therefore, the.308 case I just purchased a lock n load OAL depth gage my! Identical cartridge was standardized as the ought-six and rim diameter of bullet while the 45 is the height of same! I really like the 30-06 flatter and just as hard as the.... Be trimmed rifles will let you load longer, of course, and the Type 9°. Firearms experimenter and gunsmith based in Viola, Idaho in the process of adding bullet I. Auto.44 Special.44 Magnum.45 Long Colt.44-40.357 Sig.30 Carbine.223/5.56.308 Winchester 30-06 - Springfield Ammo Wolf FMJ: 145gr::... Weight as it seems to excel attained from a lack of slower burning powders capable of taking advantage the! Comes to weight, the.30-06 has a case length – length of the large case capacity resized,. Own 30-06 I really like the 30-06 has a 68.2 grains ( 9.7 g ) bullet 15... 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