The Precision Rifle 240 grain .40 caliber Dead Center with a .40 x.50 caliber sabot and Muzzleloader Magnum Sub Bases.

These Muzzleloader Magnum Sub Bases were recovered after firing. Notice the lands and groove imprints and the flared base. Both are signs of perfect performance by the Muzzleloader Magnum Sub Bases.

The left group represents a load without using the Muzzleloader Magnum Sub Bases. The right group shows the same load with the Muzzleloader Magnum Sub Bases. The resulting group size shrunk from 1.348" with a standard deviation of 54 on the left to a group size of .770" and a standard deviation of 19 on the right.

Although it is early in Precision Rifle's testing, they have already committed to adding the Muzzleloader Magnum Sub Base to their product line. In every group tested the accuracy has either improved or remained unchanged. In every load shot through the chronograph, the Standard Deviation has improved. By utilizing the Muzzleloader Magnum Sub Bases they have been able to increase powder charges and velocities by up to 200 fps while maintaining accuracy and Standard Deviation.

Testing will continue in the upcoming weeks including smokeless powder loads for the Savage muzzleloader. They believe the inclusion of the Muzzleloader Magnum Sub Base will allow slow burning powders to ignite cleanly with light bullets. Updates to this page will continue as more test data is gathered.

Ray
Thanks so much for the time you spent with me on the phone answering all my questions.  The other day I finally got the time to shoot and try out the new VariFlame Primer Adapters and Magnum Sub Bases.  All I can say is wow it is the first time I shot like this with a muzzle loader at 100 yards.  My hunting buddies can't believe it as well. These bullets are the real deal also the powder flask really works great and makes it simple to make your loads.  I will be calling in another order real soon. Thanks again and good shooting.  I am enclosing a picture of a group I shot.  Click image to enlarge it.

Thanks, Frank Tansley
Beachwood NJ