I don’t get the appeal of .300 Blackout

Long ago I was at the range and one of the regulars was talking about how he had loaded some .300 Whisper rounds and that they were so super quiet. Everyone was so excited to hear them, that it was suppose to be like shooting a silenced rifle. I was working as a range officer at the time so we arranged for the line to be called hot just for this guy so we could hear him shoot.

A shot was fired. I was so very disappointed because it sounded like any other gunshot.

.300 Whisper was changed slightly, and became the .300 AAC Blackout. Robert Silvers did some brilliant marketing and made it popular.

I have heard and read some really outlandish claims about the .300 BLK. Had someone tell me it makes .308 obsolete. I’ve seen many claims online that a suppressed subsonic .300 is hollywood quiet. I’ve even seen more than one person proclaim that the U.S. Military needs to replace all the rifles, carbines, machine guns, and sniper rifles with .300 Blackout. Claims like that made me even more skeptical about the round.

A more realistic comparison is 7.62×39 Russian or .30-30 Winchester. Both are good rounds, but I don’t see anyone clamoring for the U.S. Military to switch to either of them. .300 BLK does have the advantage of using a wider variety of bullet weights than either of those two other cartridges.

For someone plinking unsuppressed, 7.62×39 is far more available and cheaper. .30-30 has more than proven it self over the years.

It seems to me the best strength of the .300 Blackout is out of short barrels. You can have a subgun sized weapon with better performance than a pistol caliber.

An overlooked plus of the .30 cal bore for special operations would be that the barrel would drain quickly when exiting water. Unlike the issues with capillary action keeping water in a 5.56 bore.
https://apps.dtic.mil/dtic/tr/fulltext/u2/202468.pdf

Subsonic .300 BLK provides muzzle energy similar to a .45 ACP. Subsonic .300 BLK is more like a pistol cartridge than a rifle round. But it retains the greater flash and blast of a rifle. With the really short barrels and super sonic ammo, you are talking similar performance to an M1 Carbine firing .30 carbine.

I often see the comment of a short barreled AR15 in .300 BLK as a replacement for the MP5. That makes sense as the MP5 is old, large, heavy, has a worse manual of arms. But if you are looking for the smallest package, a SMG with the mag in the grip would be even smaller than an AR15 style weapon.

I don’t really see the appeal. Certainly not a bad round, but what is the real niche of it?

Optic of the week: Leupold MK6 1-6 CMR-W 7.62

This is the most awesome optic that I am not going to recommend.

I’ve been selling off some of the stuff I wasn’t using. I ended up getting this scope in trade for a scope I wasn’t using and wasn’t going to use. I wouldn’t purchased this scope outright, but now that I have it, I really love it.

The MK6 1-6 is kind of an odd duck. It is most often seen with the CMR-W reticles which are most like an ACOG BDC with addition milradian hash marks and wind hold marks. It has a very bright daylight visible illumination, great turrets, an awesome 1x setting, a really nice battery cap, etc. But the list price is insane, and it is build for to be used in a way that I think makes it less preferable for most people.

There are two issues which I think makes the MK6 1-6 the wrong choice.
First is cost. MSRP is $2859.99
I’ve seen them sold used, with a mount for less than half that. Even so, that is pricey. While this scope is great, I wouldn’t pay that much for it. I only have once because I traded a much cheaper scope for it.

Second is the role of the scope.
There is a spectrum between speed and precision. A reflex sight is built for speed, and that 42X bench rest scope is built for precision. As magnification increases, users tend to want something geared more towards precision. This scope has a course BDC reticle and coarse adjustments, it is more like an ACOG+ than a mini-sniper scope. Most people I’ve talked to would rather have a mini-sniper scope these days. Now we have all sorts of new 1-8X and 1-10X that better fit that role over this scope. It is as if this scope is obsolete before it came to the market.

The glass is imported, so it doesn’t say “Made in the USA” I’ve yet to meet someone who doesn’t agree that foreign glass is better.

The turrets on this scope lock at zero and have a button to release them. If you press the button and turn it away from zero, they are no longer locked and you can turn them normally. Each click is clearly felt and barely audible. I found it really easy to set the zero on these as once I loosen the cap, turning it to zero locked the rotation, allowing me to just re tighten the screws. I would be perfectly happy if all my scopes had turrets like these.

These scopes turrets are .2 milradian adjustments. So about .72MOA per click. This allows the user to dial in up to about a 900m zero in a single turn, but also clearly shows that this is not a scope for precision shooting. I don’t think of this as a downside, but it is certainly an unpopular choice.

This is the best scope at 1X I have ever used. It felt the most like an Aimpoint than any other.

If you are properly aligned with the scope, the illumination is amazing. At 1X it is the flattest, nicest, most Aimpoint like view I have seen out of a magnified scope. But due to the lighting system this scope uses, if you are slightly off axis it dims greatly.

Lined up and the reticle is very bright
Move your head slightly and it dims.

The CMR-W BDC reticle is in meters. The 5.56 version goes to 900m (about 984 yards) and the 7.62 version goes to 1200m.

The center dot is for 200m. To the left and right there are mRad hash marks and a mRad vertical scale on the left. Along side the bullet drop chart there are wind lead marks for 10 and 20 mile per wind hold. Also on the left side of each distance there is a range finding tool.

A side note, I highly recommend when you are zeroing a scope, that is new to you, to start at close distances. This scope is was set 9 inches low at 25 yards. Had I started at 50 or 100 yards I would have been well off the target.

The battery compartment has a recessed button and flips open

The battery compartment makes for easy and fast battery changes and removes the chance of cross threading a cover back on. For the optics with short battery life, they all should have battery compartments like this.

The 20mm objective lens looks tiny in the 34mm tube.

I really enjoy shooting with and using this scope. But I do not recommend anyone buy one. Doubly so at list price. Optics design and tech is rapidly advancing. Now there are cheaper and smaller 1-8X scopes like the Nightforce NX8. When I first used the MK6 I thought it felt heavy and clunky. I was sort of surprised when I read it is the same weight as some much smaller scopes I own. It isn’t really heavy for what it is, but it is large. I think it feels clunky and overkill for an AR15, but less of a long range precision scope than you would want on a .308 Semi Auto.

It is a great scope, but if I was spending fresh cash, I would rather spend far less cash on newer scopes.

Inland MFG M3 Carbine

We have seen a few really nifty M1 carbines out of Inland the last few years. It was just a matter of time before they offered us the version the least known or seen. The M3 was the variant done up to mount a huge active IR night vision “sniper” scope and a huge battery to run it. It didn’t really pan out at the time but it’s existence did mean the carbine Colt version of the M16 would forever be known as the M4.

Now, if you add some normal day time optic to the handy little carbine that is another story. Above you can see the base/ring mounting system Inland has developed for the mounting of optics. Simply put, the base uses the redfield/leupold turn in front ring and dual windage screw rear ring system. any rings you want to buy that work in this manner will fit and work. And it works really well. I chose to put a vintage Weaver K4 on the gun as it is more evocative of the time period this gun had its short heyday.

The machine work Inland put in on this is kinda of amazing. My friend and partner in crime when it comes to our more insane long range shooting ideas is an experienced machinist and when I showed it to him, we both at first thought the base was part of the receiver and machined into shape. It took a surefire light and a closer look to see that it was indeed not part of the gun. It really is a beautiful job.

One of the things that sticks out on the M3 was the cone flash suppressor. Inland did not forget this iconic attachment. And it is attachable. As you can see above it is a simple system. You can chose to put it on or leave it off. I found it did not really impact accuracy any amount I could determine while on and shooting at ranges the 30 carbine round was meant for. There was slight changes when shooting with our without though and depending on the mood or whichever gun you may have, the amount of re-zeroing could vary. I did not bother to re adjust the optic as it was less than 3/4 inch impact change and I was shooting for groups and location on the target did not matter to me.

As expected, being able to use some magnification helped with group size at longer ranges. The Inland M1s have been accurate for me over years since starting to test them.

Group above was shot off bags from bench at 100 yards. The group is a 10 round group and the one flyer I offer no excuse for other than I just touched it off without being ready. The group below was fired at the head at 150 yards.

All groups were fired using federal soft point LEO ammo. I have no idea where I ever got this ammo from but it is pretty accurate. Unfortunately I used all I had left for this test. Target below was fired at center body of target from 300 yards. With the optic it was pretty easy. It is still a carbine meant for combat but I can’t imagine anyone with any sense really having much to complain about its performance at this range. But I am sure some one will in the comments.

Hey, what more could you ask for considering the limitations of the round? Pair the optic with a Korean era 30 round magazine and you got one heck of a neat little carbine for something. Walking around the farm shooting ground hogs or maybe short range coyote gun. With proper bullet selection maybe even white tail at shorter ranges. I don’t know, your imagination is the limit. It doesn’t need justification if you want it. if you think it’s neat then buy one. The quality won’t let you down, nor it’s looks.

I apologize for not having a full glamour shot of the gun with optic for this review. Something went badly wrong with my camera during the uploading process. The camera decided to die after 9 years and it took the remaining pictures with it. This includes the rest of the groups shots and the glamour shots of the gun posed with period militaria collectibles and all that crap you are used to seeing when I do these. That is also why this review seems shorter than normal. It’s not just your imagination or my laziness. I have been trying to recover those photos and if so I will update this review ASAP. To add to that this was the first time I didn’t bother to back up every picture by taking the same pictures with my Iphone just in case.

A little Humor & Update

I know the website has not updated every day like I probably got you used to all of last summer and most of the fall. If you are wondering why it is because I had some medical things I had to get sorted out. Then I got pneumonia. Then it was the holidays. But that is all over now. So what is the hold up? Well it is winter here. Winter in Ky is sometimes very cold. Especially here in the eastern portion ( mountains). But more often its wet and windy and hovers around freezing. That makes it tough to do any real firearms testing up on “the range” AKA the reclaimed strip job on top of a mountain range. I have stuff sitting her ready to go if the rain stops for a bit. The Inland M3 sniper carbine review is almost done. To use Hognose’s schtick, it’s thiiiiiiis close( imagine fingers almost touching).

Anyway, Howard lives in Florida but isn’t Florida man. Yet. So thankfully he can still do some stuff at his range on the weekends. Duncan has apparently ran off to pursue his dream to be a transgendered stripper in NYC since the Gov shut down since our tax dollars are not being sent to him to pay him to oppress us as a Fed for the nonce. Daniel you will see posting Daniel Watters stuff on the Looserounds facebook page if you want something good to read while goldbricking on the toilet at work.

So what is upcoming? well, more videos will start being introduced to the website. Yea yeah. I know, Don’t worry. We aren’t gonna turn into Full30 over here. We will always be 90 percent writing and images. Once you see some of the videos you will understand why I chose video. I’m sure you will appreciate that decision.. Ahem.

That’s about it for now. I will leave you with some funny pictures for a chuckle. It’s ok, the Gov is shut down so they can’t do anything to us if we laugh.

Figure of merit and string length

This was sent along to me to share:

Just FYI.  The primo sniper rifle of the 1850s-1860s.  How accuracy was measured and compared.  The price of this rifle was outrageous but still the Confederacy bought some when they could.  Used a different style of rifling and bullet.  For best results the gun was cleaned after each shot and one had to be careful how much pressure was used to seat the bullet as that changed the point of impact.

BTW  Often used in contests, was ‘string length’.  A string was stretched from the center of the bull to each of the bullet holes, the total length of the string was the ‘score’.  Winner was the shooter with the shortest string length.