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This knowledgebase is the culmination of 20 years intensive field research and as new bullet designs emerge, this research continues. The database on this website is and will be updated accordingly. Expert rifle & cartridge research, carefully compiled through extensive field-testing & freely offered to the firearms community.
Basic Rifle Accuracy and Ballistics As a hunting guide the biggest problem I am faced with (besides locating game) i... .303 (.311-312) Cal FMJ military 7.62x39
Nevertheless, the 7mm08 retains a number of fans, many having hunted with this cartridge for most of their hunting careers. The 7mm08 is a cartridge that serves both youths and adults well, is mild to shoot in suitable platforms and is ideal for a vast range of applications. Suggested loads: 7mm 08. Barrel length: 22”.
Winchester avoided this problem by creating a similar but new cartridge caliber of .277” (7mm). The .270 Winchester was released in 1925 chambered in the Model 54 bolt action rifle. The first factory load featured a 130 grain bullet at a muzzle velocity which closely approached the factory advertised figure of 3160fps from the 54 rifle's 24 ...
The 165 grain Speer BTSP is very soft, producing fast clean kills and wide exit wounding on light bodied game down to 1800fps or 710 yards in the .30-06. This bullet is a good performer on game weighing up to and around 150kg (330lb) and can be used on heavier bodied deer with care. BC is a very high .520.
The .25-06 grew in popularity until finally, in 1969 Remington adopted and introduced the cartridge as the .25-06 Remington. The .25-06 has the distinction of being the first wildcat to have been based on the .30-06 case and lessons learned probably helped towards the development of the .270 Winchester. Remington initially introduced two loads ...
The M43 used the same .311” bullet diameter as the long standing 7.62x51 Russian cartridge however the rimless case was much smaller, giving a velocity of 2300fps with a 123gr bullet from a 20” barrel. Although having created a cartridge suitable for controlled bursts of fully automatic fire, the first rifle to be accepted for the M43 ...
Recoil levels were approximately the same as the ever popular .30-06 yet the 7mm produced a much flatter trajectory and excellent down range terminal performance. In 1962, after much experimentation at the Bowman ranch, Remington released the 7mm Remington Magnum.
For those who wish to study the .35 Whelen thoroughly as part of a terminal ballistics self learning process, I suggest some experimentation with the round nose Sierra. This is now the only reliable mass produced round nosed conventional bullet available to hand loaders in lieu of the 250 grain Hornady round nose Interlock, while also being ...
The .257 Roberts is a low recoiling, mild powered cartridge. In a short action, it has the potential for a suitable youth rifle but without care towards optimizing hand loads, can lack the power with many 117 to 120 grain loads to be of any great advantage over the more common .243.