Though these two had the largest bullet clearance, they have a very aggressive 4-port design. The Apollo 7.62 outperformed the Apollo Long Range. The best two were from Ultradyne, the Apollo Long Range and Apollo 7.62. It reduced the forces a little bit, but not like the others. Just below is the CMMG SV- this design isn’t super aggressive.
What was surprising is it had the shortest time duration. Unsurprisingly, the bare muzzle had the highest peak force.
#BEST MUZZLE BRAKE FOR 308 BOLT ACTION SOFTWARE#
Now we can directly compare lbs.-force and calculate lbs.-second impulse.Īfter we collected all of the data, ran it through my proprietary software and graphed it, this is what we saw. In prior videos, we compared the total difference in voltage to establish a percentage reduction in recoil. One of the important things I did to enhance the system is I calibrated the output to lbs.-force. This gets trimmed to 1,000 data points total. We captured up to 100,000 data points for each of the runs.
Afterwards, we put each brake on the rifle and took one shot. I’ve previously taken a deer with this rifle - check out my story, “Is 300 PRC too much for deer?” The Testīefore adding any brakes, we started with the bare muzzle. For this test, we’re using Hornady 212 grain ELD-X Precision Hunter factory ammunition.
#BEST MUZZLE BRAKE FOR 308 BOLT ACTION FULL#
The test rifle is my 300 PRC full custom in an MDT ACC chassis with a weight kit. We also have new proprietary software I personally wrote to process and trim down the data to areas of interest and produce metrics for impulse, force, and time and other things we can use to compare performance of the brakes tested. It provides instantaneous graphs of the forces and a true representation of the recoil over time. The total elapsed time can be 15 or 20 milliseconds total and you need lots of data points to produce a meaningful graph. The Ultimate Reloader recoil rig is state-of-the-art - it measures forces at the buttstock at a rate of 20,000 samples/second. I wanted to start here as it’s an interesting data point to collect. I’ll be covering the effect in a completely separate story, correlating bullet clearance with effectiveness in total reduction of recoil impulse and peak forces. Both of the Ultradyne Apollo brakes weren’t far behind with 0.058 inch clearance. The M4-72 severe duty topped off the other end of the spectrum with 0.06 inch clearance.
The EC Tuner Brake had the tightest clearance at 0.022 inches, followed by the Area 419 Hellfire, then the Bergara Radial OEM. The first thing I did was gauge each of the bores with pin gauges to determine bullet clearance.īore diameter measured with a pin gauge –. This makes the list ideal for head-to-head testing. They all have different configurations, port counts, port designs, design details, and capabilities. This is a very diverse collection of muzzle brakes. With the enhanced testing capabilities of our new recoil rig, I put all nine of the 30 cal muzzle brakes in the shop through a battery of tests. First Ever Ultimate Reloader Muzzle Brake Shootout By accepting these terms, you agree that you alone are solely responsible for your own safety and property as it pertains to activities, procedures, techniques, or practices described in whole or part on this website. Ultimate Reloader, LLC and Making With Metal can not be held liable for property or personal damage due to viewers/readers of this website performing activities, procedures, techniques, or practices described in whole or part on this website. Do not attempt to repair or modify any firearms based on information on this website.
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