Browning X-Bolts – Custom Rifle Accuracy Right Out of the Box
Browning’s Research and Development Department decided to settle the question once and for all.
In order to minimize the variables in the experiment, an off-the-shelf X-Bolt Stalker Long Range rifle was used to shoot groups through the stock Browning rifle barrels
Then that very same action was re-barreled using the after-market barrel in order to get a true comparison. The aftermarket barrels were from a well-known, reputable company. These hand-lapped custom barrels were purchased in blank form so they could be precision threaded and turned to match the profile, length, headspace and chamber specs of the original X-Bolt Stalker Long Range tested, This is the best means of creating equal test conditions for each of the barrels.
The testing included two different calibers, firing four different factory ammo specs per caliber. Each ammo spec used Browning’s standard testing protocol of one fouling shot, followed by three 3-shot groups for record. All the groups were fired with a cooling period between groups and a thorough barrel cleaning when changing over to a different ammo spec. In total well over one hundred 3-shot groups were fired.
Testing was performed in a state-of-the-art, climate-controlled 100-yard underground shooting tunnel.
Copyright Browning February 2017. Written by Browning's rifle product manager Aaron Cummins and Browning staff writer Scott Engen.