I hope this addresses both previous posts.
So, my only beef with 300 hamr is... go find ammo. However, for super sonics.... it absolutely toasts 300blk.
https://s3.amazonaws.com/wilsoncombat/files/300_HAMR_Comparison.pdfOf course, this info is from wilson so take it with a grain of salt, BUT it does show what I'm getting at. Now, I'm going to be the first to say, 1000 ft/lbs of energy is not the end all be all in energy needed to take down a deer, but that's a number we've used for years to say, "This is an ethical amount of energy." You need to combine ft/lbs with the projectile type being used to get the full story.
However, if both 300blk and 300hamr are using 125gr bullets, the difference in energy will be very significant. We'll just do a thought experiment here and use the 1000 ft/lbs as a magical number that does mean it will efficiently kill an animal. In this case, 300blk stops being effective somewhere between 100-125 yards. Hamr will actually retain that energy out to between 250 and 300. That's... a huge difference.
When both are loaded in subsonic, they should theoretically have nearly identical performance. But the only thing I'd shoot with a subsonic round is a pig because... well... Texian Firearms mantra is they have no souls. Anything else, it doesn't have enough energy for me to feel comfortable cleanly taking it.
Now, if you want a true all around cartridge that does suppress well and has decent range and operates with efficiency on deer, take a hard look at 6.8SPC. I think it's also no secret that I'm a Grendel homer over the SPC but I'm not concerned with using subsonics for hunting except with pigs and I have a dedicated SBR just for that purpose. Perk of building ARs is that I own like 6 and they are all set for very specific situations so I don't have to worry about having an all around rifle. When I built my first AR, I did go with 6.8 due to it's overall versatility but I don't really sell it much anymore since it has fallen in popularity.
So, back to the conversation at hand with 300blk vs Hamr.... For me, ammo availability is not something I'm worried about at all. But I'm a special case. I literally stock the store with the ammo I use for hunting so that I always have it. Plus, if it is something I actively use, it's a lot easier for me to be enthusiastic about selling it.
Basically, Hamr makes a very good argument for itself but I'm still left with the feeling that it is a solution looking for a problem. In supersonic, 6.8SPC has longer range than Hamr and Grendel even further. So, if you want to do more with one upper, the Hamr is superior to 300blk but if you end up running multiple uppers and have a 6.8 or a grendel, it makes the Hamr fall into the suppressed nice that blackout falls into as well.
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Dealer in Firearms, Optics, Night Vision and other shooting accessories.
US importer/distributor of Rudolph Optics
Supporting bad financial decisions since 2015
