![]() ![]() You can see from the table that while the 14.5” produced an extra 100fps with each load, the velocity differences weren’t significant in terms of a percentage of total velocity. To test this, I shot three different loads-two subsonic and one supersonic-with the Saint and with a 14.5” AR I built last year. The 300 Blackout, on the other hand, can hit max speeds in 9-inch barrels like the Saint’s. ![]() As Clay has explained, 5.56 isn’t the ideal SBR chambering because the tiny round can’t reach maximum, trauma-inducing velocity in barrels under 10 inches. ![]() Speaking of barrels, 300 Blackout is also ideal for shorter barrels, especially compared to the 5.56. I never had any issues shooting suppressed with either subsonic or supersonic loads, but it’s nice to know that the Saint can be tuned without altering the buffer, spring, or barrel. That’s why Springfield included in the Saint Pistol an adjustable gas block, which can be used to tune the rifle to your load/suppressor and ensure reliable cycling. With so much variation in bullet weight and muzzle velocity, reliable cycling can sometimes be an issue, especially when using a suppressor. If you reload, the options are almost literally endless. Users can match bullet weight to the application and tailor their rounds to hunt pigs in the brush or reach out to targets at 200+ yards. You can find supersonic loads using 110 grain bullets (> 2400 fps) as well as subsonic loads using 225 grain bullets (< 1000 fps). Hornady sent three rounds for use in this review - two subsonic (left, middle) and one supersonic (right).ģ00 Blackout is also one of the most versatile cartridges on the market. ![]()
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