Ultimate Reloader Special: Pushing the Limits of the 308 Winchester

TLDRIn this episode of the Ultimate Reloader Special, we join forces with BAT Machine and Alpha Munitions to push the limits of the 308 Winchester. We aim to increase the velocity and pressure to levels way beyond what the 308 Winchester was designed for. Join us as we shoot at close to a mile and achieve incredible results.

Key insights

🔥We successfully pushed the 308 Winchester to velocities and pressures way beyond its designed limits.

⚡️The combination of Varget powder and Berger 215 grain bullets produced exceptional consistency and accuracy.

🎯Despite the extreme pressures, the brass held up well, with no signs of failure or deformation.

💪Our results demonstrate that the 308 Winchester cartridge has the potential to perform far beyond what is typically expected.

🌟By carefully adjusting the load and using high-quality components, we achieved outstanding velocities and maintained excellent accuracy.

Q&A

Did you experience any signs of overpressure during the testing?

No, we carefully monitored the pressure signs and adjusted the load accordingly. We were able to achieve high velocities without any signs of overpressure.

What components did you use for this high-pressure load?

We used Varget powder, Berger 215 grain bullets, and CCI primers. These components were selected for their ability to handle high pressures.

Were there any issues with case extraction or bolt lift?

No, we experienced smooth case extraction and easy bolt lift throughout the testing. The brass held up well, and there were no signs of excessive pressure.

What were the velocities achieved with this high-pressure load?

We achieved velocities upwards of 2650 feet per second with the 46 grain load. These velocities far exceeded the standard performance of the 308 Winchester.

Will these high-pressure loads work in a standard 308 Winchester chamber?

We do not recommend using these high-pressure loads in a standard 308 Winchester chamber. These loads were carefully developed and tested under controlled conditions. Always follow safe reloading practices and reference reputable load data sources.

Timestamped Summary

00:02In this Ultimate Reloader Special, we push the limits of the 308 Winchester.

04:18We start the testing with a 39 grain load and gradually increase the powder charge.

11:13At 45 grains, we start to see signs of primer extrusion and decide to switch to CCI primers.

15:02With the CCI primers, we continue testing and achieve velocities close to 2700 feet per second.

16:56We conclude the testing with a 46 grain load, achieving velocities of over 2650 feet per second.