6.8 Western Deep Dive: Loads, Accuracy & Ballistics

I just finished our 6.8 Western full-custom build, and the results were amazing with Peterson Brass. I want to take the story from there and continue with some critical questions: How does 6.8 Western compare to cartridges like 6.5 PRC? What about load development? What components did I settle on? Let’s summarize the performance.

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About the Build (A Quick Recap)

I had a ton of fun building this 6.8 Western platform.

Rifle Builder PRO provided color-coded, 1/10,000-inch instructions every step of the way, making it easy to do super high-quality work really quickly.

The rifle itself is composed of the best of the best:

BAT Igniter Action
Krieger Barrel (finished at 28 inches to show the cartridge’s true performance potential)
Foundation Genesis 2 Stock
Hawkins Precision Bottom Metal
Element Optics Theos 6-36×56
SilencerCo Omega 300 / Area 419 Maverick Gen 1 (for testing)

Ballistics: 6.8 Western vs. 6.5 PRC & 7mm PRC

How does the 6.8 Western stack up against popular competitors like the 6.5 PRC?

The muzzle velocities are very similar (within 1% from a 24-inch barrel). However, because the 6.8 Western uses a larger diameter caliber with heavier bullets (e.g., 170-grain vs. 143-grain ELD-X), the 6.8 Western produces roughly 16% more energy at the muzzle.

Assuming similar BCs, that increased mass yields 10% to 20% more energy downrange at around 800 yards. The 6.8 Western maxes out around 175-grain bullets, while the 6.5 PRC maxes out around 156-grain (like the Berger Extreme Hunters)—representing a 12% increase in bullet mass for the 6.8 Western.

6.8 Western produces roughly 23 foot-pounds of recoil energy compared to the 6.5 PRC’s 18.5 foot-pounds. This is about a 25% to 27% increase that you will feel, though an effective suppressor or muzzle brake will take the edge off.

Looking at a 1,000-yard drop chart, the 6.8 Western has about 50 inches less drop than the 6.5 PRC, and roughly 90 inches less drop than the 6.5 Creedmoor.

Interestingly, the drop chart lines for the 6.8 Western and the 7mm PRC are almost completely overlapping. It is almost better to compare the 6.8 Western to the 7mm PRC rather than to the 6.5 PRC. 6.8 Western really fills that gap between the two, providing very similar terminal ballistics to the 7mm PRC.

Load Development & Express Reloading

For load development, I decided not to mess around. I gathered top-shelf components: Berger 150-grain Hybrid Target bullets and virgin Peterson brass.

Looking at Hodgdon’s website (always check OEM sources for your own data), the maximum H1000 load for the 150-grain bullet is 63.4 grains. Because H1000 is an incredibly consistent Magnum powder, I selected it for this test.

I primed the virgin Peterson cases using the primer arm on the Redding Big Boss II press (using Magnum large rifle primers).

Using an RCBS Chargemaster for fast charge adjustments, I loaded strings at 62.0, 62.5, and 63.0 grains of H1000.

For an initial load-up, I start by doing the “Loctite trick” on fired cases to find where the bullet touches the lands. I then back off and seat the bullet about 0.020″ deeper for a 0.020” jump.

Shooting

After bore-sighting, my first shots landed a little low on the page. However, the first three shots with the 62.0-grain load went into an incredible 0.261 inches. I was thrilled with quarter-MOA performance straight out of the gate from a brand new barrel!

I pushed the load up to 62.5 grains and shot another 3-shot group that measured an insane 0.142 inches (using the Area 419 Maverick Gen 1 suppressor).

As I increased the shot count to 5-shot groups, I noticed a few flyers. Thinking it might be related to the suppressor heating up, I switched over to the SilencerCo Omega 300.

Five shots at 100 yards with the 62.5-grain H1000 load through the Omega 300 yielded a highly impressive 0.390-inch group. The velocity averaged approximately 3,100 fps with a 10.7 fps standard deviation.

For a magnum long-range hunting load, achieving sub-half MOA accuracy with an SD around 10 is exactly where I want to be. I plan to test the 170-grain Berger Elite Hunters (G7 BC of 0.339) next, which will likely require a different powder and seating depth calculation.

Conclusion

The 6.8 Western project has been incredibly satisfying. It is an absolute tack driver with great downrange energy, splitting the difference between two incredibly popular options: the 6.5 PRC and 7mm PRC. I would definitely hunt with this cartridge.