Originally Posted by AU338MAG
Originally Posted by RidgeRanger
To name a few:

6.5 Creedmoor
6.5 PRC
300 PRC
7mm PRC
450 Bushmaster
300 Blackout

The first four opened new levels of chambering precision in factory rifles and are optimized for high BC bullets. The last two greatly broadened the horizons of America's favorite rifle.

The only ones on your list that have made a huge difference are the Creedmoor and maybe the Blackout.

For decades, the gun industry had a "big 6" group of cartridges that were virtually required chamberings when introducing a new rifle the 243 Winchester, 308 Winchester, 270 Winchester, 30 06, 7mm Remington Magnum and 300 Winchester Magnum. The 6.5 Creedmoor is the first cartridge to challenge this list in decades.

The Blackout is important due to its military applications which is always a good thing for success.

The PRC cartridges are still a small niche and will remainthat way, possibly going the way of the short magnums in a few years. They'll still be around but limited availability in factory rifles.

And both of those have been around forever also, I was shooting a 300 Whisper back in the 90s, hornady just has a great marketing dept and someone decided to throw the whisper in an AR and call it the BO. I'd say probably the short mag cartridge has had the biggest impact on rifle cartridges since their development.

Last edited by 1bamashooter; 10/02/24 02:31 AM.
Keep your booger hooker off the bang switch.