6.5mm Cartridge Overview — Laurie Holland’s Opus

Are you a fan of 6.5mm rifle cartridges? Then you should visit TargetShooter Magazine and read Laurie Holland’s latest “magnum opus”. Laurie recounts the development of 6.5mm rifle cartridges and examines a host of “six-fives” including the well-known 6.5×55 Swede and more esoteric cartridges such as the 6.5×58 Vergueiro. Laurie looks at a variety of military 6.5mm cartridges, including Japan’s 6.5×50 Arisaka, as well as some big 6.5mm Magnums. This Editor shot a .260 Remington (essentially a necked down .308 Win) for quite a while. I was pleased to see that Laurie discusses the .260 Rem, along with its bigger brother, the 6.5-06.

READ Laurie Holland 6.5mm Cartridge Overview

Part One of a four-part series, this is a LONG article, which runs over 4000 words. There are more than a dozen photographs, showing both cartridge types and bullet types. In addition, cartridge specs are presented in two detailed tables. Here is a list of the notable 6.5mm cartridges Laurie references (and we may have missed a few):

In early 20th century the 6.5x54mm Mannlicher-Schoenauer was a highly-regarded hunting cartridge.

Here is a sample from Laurie’s 6.5mm Cartridge History:

The 6.5×55 Swedish Mauser and Other Early Designs
Thanks to the 6.5X55mm and its common name of ‘Swedish Mauser’ (it was a joint Swedish / Norwegian military development truth to tell), not forgetting first rate Lapua, Norma, and Sako ammunition and components, many associate the 6.5s with Scandinavian countries. However, the two Nordic nations weren’t alone in adopting 6.5mm designs during the back end of the 19th century, moreover Germany and Austria did as much to popularize the caliber. The Netherlands, Italy, Japan, Romania, Portugal and Greece took the small caliber military route too, although some later decided to convert at least partially to larger bores.

However, once armies started to adopt lighter, pointed bullets at improved velocities in the .30-class designs starting with the German 7.92mm 153gr bulleted S-Patrone of 1905 which produced the then astonishing MV of 2900 fps in the G98 rifle, the 6.5s lost out as contemporary propellants couldn’t handle smaller calibers as efficiently. It’s significant that while some early users moved to larger caliber service rifles, no country [other than Japan] has adopted 6.5mm in the last 110 years although there have been some unsuccessful initiatives recently.

Prior to WW2, there had only been a single American attempt to produce a 6.5, the brilliant cartridge designer and riflemaker Charles Newton with his eponymous 256 design of 1913 which used a shortened and necked-down 30-06 case. The Western Cartridge Company loaded ammunition for Newton, a 129gr expanding bullet at a claimed 2760 fps MV and obtained in a longer barrel than those fitted to production rifles.

RWS introduced the powerful 6.5X68mm in 1939 and it is still in use in Europe.

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Tags: 260 Remington, 6.5 Magnum, 6.5x55mm, Laurie Holland, Mannlicher, Target Shooter Magazine