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New Products - MatchGrade Bedding Products

Written by Nathan Foster on January 21st, 2009.      0 comments

logo.jpgMatchGrade Bedding Products are a new range of  products that have been specifically designed, developed and tested by Terminal Ballistics Research in conjunction with a leading New Zealand polymer resin manufacturer.

For optimum accuracy, a rifle should always be bedded at the action and beginning of the barrel. Along with bedding, the barrel should always be free floated (not touching the stock forend). Nevertheless, regardless of efforts to free float the barrel, plastic rifle stocks often suffer forend flexing. In some instances, flexing will cause direct pressure against the rifle barrel, in other cases, the stress is indirect. In either case, these stresses upset barrel harmonics with a drastically negative effect on rifle accuracy.

See the following links for more information:

New Article - What is Rifle Bedding?

Written by Nathan Foster on January 21st, 2009.      0 comments

To go with the release of our new MatchGrade Bedding Products, I have published a new article - What is Rifle Bedding?

Rifle bedding is fundamental to rifle accuracy. The term bedding refers to the fit and stability of a barreled action within the rifle stock. If the fit and stability of the metal work in relationship to the stock is poor, the rifle will be in-accurate. Bedding a rifle with a polymer resin is the optimum method of obtaining a correct fit, long term stock stability and optimum rifle accuracy.

To find out more about rifle bedding, you can read the full article here.

New Article - The Effects Of The Meplat On Terminal Ballistics

Written by Nathan Foster on October 25th, 2008.      0 comments

The word meplat is a term used in ballistics terminology that has survived from a bygone era. The word itself is a french noun which means 'the flat of' and in ballistics it refers to the tip of a projectile. Meplat is not an adjective, it does not describe the shape of the tip or diameter in any way. Our current term could easily have been 'tip' or 'point' or even 'Fred' but instead, ballistic engineers of the world use the word meplat. The French were very much at the cutting edge of ballistics during the 19th century and the word meplat has survived out of an unconcious respect for these eary pioneers. The term mostly likely stems from the days when all conical projectiles had flat points. The front was therefore called the flat and the rear dubbed the heel. Nevertheless, do not be confused, the word meplat simply means 'tip' in today's terms.

As most will guess, the shape of the meplat (tip) has a great effect on external ballistics (how the projectile flys through the air). The shape can also have an effect on terminal ballistics and performance with regard to projectile energy transfer on game, projectile expansion and stress to the projectile during this rapid change in medium.  To find out all about what sort of effect the meplat has on a projectile, you can read the full article here.


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We are a small, family run business, based out of Taranaki, New Zealand, who specialize in cartridge research and testing, and rifle accurizing.