ⓘ 6.5-06 A-Square. The 6.5-06 A-Square is a centerfire rifle cartridge that originated as a wildcat, based on the popular.30-06 Springfield. A-Square standardized ..

                                     

ⓘ 6.5-06 A-Square

The 6.5-06 A-Square is a centerfire rifle cartridge that originated as a wildcat, based on the popular.30-06 Springfield. A-Square standardized the dimensions of the cartridge and submitted them to SAAMI in 1997.

                                     

1. Design

The 6.5-06 A-Square uses a.264" diameter bullet loaded into a modified.30-06 Springfield cartridge. The neck is reduced to accept the smaller bullet, the shoulder is longer than that of the parent cartridge, and it has a 17.5 degree shoulder angle leading to the neck of the case, where the bullet is seated.

                                     

2. Uses

The 6.5-06 A-Square has power similar to that of the.270 Winchester and.308 Winchester, making it suitable for hunting medium-sized game such as deer and black bear. It is also used in competitions such as F-Class and Benchrest formats.

                                     

3. Availability of ammunition

Currently 2011 none of the major commercial ammunition manufacturers offer factory loaded 6.5-06 A-Square ammunition. There are smaller companies that custom load the cartridge however, and hand-loading can be accomplished using the proper set of dies and using.25-06 Remington.270 Winchester, or.30-06 Springfield brass and making the proper modifications to fit the 6.5-06 A-Square chamber. After firing, the brass from the original cartridge.25-06 Remington.270 Winchester, or.30-06 Springfield will be fire-formed to the exact dimensions of the 6.5-06 A-Square chamber.

                                     

4. Firearms chambered for 6.5-06 A-Square

As of 2011 A-Square listed two different rifles factory chambered in 6.5-06 A-Square; the Hamilcar and the Genghis Khan. Several of the major custom barrel manufacturers offer the 6.5-06 A-Square sometimes listed simply as 6.5-06 chamber as an option for builders of custom rifles. However, On 15 February 2012, the A-Square Company ceased to exist.