do you want a comment on each vid for the giveaway? well i guess i did just now. i have loaded 300. i got a bunch of different heavy ones but my favorite is 168 gr and a sub load that will cycle. with the Phanton they are super quiet. the plan is to have a scope hash mark for a few different distances. the plans went south so far.
This channel is criminally underrated! The only other channel I’ve seen that offers the same data points is Tnoutdoors9 but he hasn’t been posting much for a few years. That being said Buffman Range is absolutely the best channel on RUclips the actually is testing ammunition and body armor! Thanks brother! Keep up the good work Sir! Drew.
I did a bit of research and realized 1:5 twist rate barrels are what you want for subsonic 300 Blk rounds to get the best accuracy. I bought a 1:5 twist barrel for my build and so far it's spot on with accuracy, often shooting holes nearly on top of the hole before it.
Glad AAC is doing what they do. I'm excited for their eventual 7.62x39 releases down the road. Maybe we'll finally get some cheap yet "good enough" soft points and HPBT projectiles!
My 7.5" 300bo SBR running 220gr Hush cycles with no issues. With or without my Silencerco Hybrid 46. Are you rocking 2 t-shirts in the opening? Bold. Showing off your hypertrophy bro. This is becoming one of my favorite Guntube channels. Keep up the good work.
@@BuffRANGE I'm a AR builder, Cerakoter and gear enthusiasts. I've never gotten into what you do, nor could I. I have to many tangents just in building AR'S. Thankfully I have your channel to educate me, when choosing twist rates, ammo and such. Best subsonic 300bo hd ammo you've ever tested?
Because I'm usually the guy commenting about the Chrono not working, I just wanted to be fair and say that I appreciate whatever you did to get that thing working consistently today. I didn't notice a single failure to read.
I believe you want a higher twist rate for the slower speed ammo to stabilize, alternatively, use the blunt nose stuff which has a more fwd CG than the A-max and will stabilize at the lower RPM. I'm shooting the Ruger ranch bolt gun in 300 AAC 16" barrel and 1:7 twist, sub MOA groups.
@@BuffRANGE waiting for some ridiculously high priced ss190 black tip 5.7x28 to show up. Got my 5.56 can on the Ruger LC carbine. Hardly silent but hearing safe with no ear pro.
Berry plated 220g is cheap and the softer plating allows for expansion at low speeds especially if you just file the copper off the tip, it expands better than the majority of .308 offering apart from maybe sub x.
I wouldn’t blame the ammo for a PSA build not liking the ammo. I get sub 1’ groups out to 150y out of my 10.5 criterion core barrel with hornady black 208g amax. Tho it definitely could be a different in hornady vs AAC. Great vid.
This is hilarious your timing. I just had a 300 BO built around a 10.5 core and my bulk ammo ordered for it was H black 208 amax. That is very weird timing. Any general advice or things to watch out for since we basically have the same build? What buffer weight/spring are you running?
@@hannibalbarca2939 sprinco white spring with an h2, but I’m about to try an h1. Doesn’t happen very often (about 1/10 mags) but sometimes it doesn’t lock open on last round. I suspect that the issue is that the gas port was sized to account for suppressed shooting, and so the heavier buffer wasn’t needed. I’m certain an h2 will fix the problem. Here’s my build list. Have about 5.5k into it. ACOG/fast mount Modlite setup FCD sauce LMT MARS-L Geissele MK4 rail Crit. C. 300b 10.5 Geissele SD-E Hodge BCG Vltor mur upper Surefire MD Radian Raptor SL Badger SS B5 sopmod/grip SLR GB8/gt Surefire 300sps
@@danielhaley89 a man after my own heart. I just built a hodge build (kind of): hodge 12.5 bbl hodge pinch lock 11.5 geissele RE BCG V7 m4 upper badger ordnance CH Thank you for the tip on h1! That will be my starting point. When you shot with h2, was it all suppressed or unsuppressed? If so, high back pressure can or low?
Its a pressure issue with the buffer. The pressure comming off the blast of the bullet is JUST short of it at the specs this bullet is at. One slight step down in weight should solve the issue. Or adjust your has block to hold in more pressure (if you have an adjustable one) Literally he just said this after I typed it 😂
Interesting. I haven't gotten holes in the fingers, but have broken the stitching along the fingers.. Luckily I've been able to stich them back together :D
It’s a lack of gas. Some subs right a line of being subsonic in all barrel lengths or possibly going super. If you loaded this specifically for a 7” barrel and got 1050 it would cycle. Having an adjustable gas block would also have helped.
Good video! Just wondering if an adjustable gas block would help give more gas? Seems like the only thing it could do for you is turning down gas. The gas port hole would need to be bigger to help right? I’m learning still so wondering. Thanks!
Can confirm at 300 win mag velocities these are deadly. I push them around 2900 at the muzzle and theyll kill a whitetail deader than dead at any distance you can ethically hit them
Would you recommend for home defense suppressed? I’m building an indoor rig. I have an 8” build I’m more than likely going to switch to a 10.5” barrel with adjustable gas block and top it off with my omega 36m suppressor.
In my opinion, no. Given these are subsonic bullets and the massive amount of penetration you would be better off with an expanding 300 BLK load. Will these work most definitely, but would say something like from Discrete Ballistic would perform better for your use parameters.
Most of the 200+ grain loads for the blkout is poor accuracy because it just doesn't like to stabilize at such low velocity. I dont go above a 178 grain and it can be fired subsonic.
Theres a whole lot of choice with .308 but the fact is that most of it is meant for those higher speeds. Alot of the soft point and otm have virtually no expansion. I like the berry 220g bullet just because its design for the caliber and the softer plating actually expands at low speeds especially if you file copper off the tip. Sub x is way too expensive amd they dont even have anything above 200g
is there a load for subsonic that expands at all? I get that its basically a pistol round, and they are meant to expand at their velocity, is anyone making a for sure expanding 300bk? Like the Hornady's?
I honestly want to know what the appeal of .300 Blk is. Yeah, you can get supers, but from the barrel length most people are shooting them from, they still aren't above the minimum threshold for cavitation damage from a spitzer projectile. It's okay ballistics, if you think of it more as a magnum handgun round. But let's face it; the cartridge exists for the subsonic offerings, which almost always suck. On paper it is matching a .45 ACP. But in reality, most loads use heavy match bullets that don't perform well at subsonic velocity, whereas at least with a .45, or even a 9mm, you can count on bullets designed to perform at those velocities. Without expensive specialty projectiles, the .300 Blk always seemed like a solution in search of a problem to me. I'd honestly rather have a legit pistol cartridge for suppression and a legit high velocity rifle cartridge for everything else. The .300 Blk falls in those over-hyped niche rounds, like 5.7x28, that never seem to perform well in testing.
I don't disagree with you. For me I've found validity of using AP 30 cal laods in 300 BLK and them defeating plates that advanced 5.56 bullets (M193, M855, and M855A1) couldn't defeat, but that's not a common use case for everyone. I do like me some 5.7 but it in the grand scheme of things will never = even the most compromised 5.56 load.
Adleast your aac fired.. I bought the 110 vmax awhile back and literally half the ammo wouldn't fire the primer was struck and I even ran the ones that didn't fire through the mag a 2nd time and they were just duds personally not a fan of aac at all
@Buffman - R.A.N.G.E. .308Win kurz lol. Yup. If one is gonna shoot heavy boi subs, it makes sense to have a specific upper built for those loads - barrel twist rate and gas port size. The ammo performance did what it was supposed to do. It's a good offering. Although, I don't see the point of using an A-Max bullet. The same performance could be achieved with standard fmj.
@@Enjoyer.762 In all honesty that's where I'm at. These bullets at subsonic speeds lack terminal performance. Why spend $$$ on Amax and SMK when an FMJ can do what's needed.
![GEEK TIMË [OFFICIAL AUDIO]](http://i.ytimg.com/vi/ry-6RvkH880/mqdefault.jpg)
Don't forget about the giveaway: ruclips.net/video/Z_yTeH1HDk4/видео.html
Already commented!
Just commented. Thanks for all you do Matt!
do you want a comment on each vid for the giveaway? well i guess i did just now.
i have loaded 300. i got a bunch of different heavy ones but my favorite is 168 gr and a sub load that will cycle. with the Phanton they are super quiet. the plan is to have a scope hash mark for a few different distances. the plans went south so far.
Nope just the original one :D
This channel is criminally underrated! The only other channel I’ve seen that offers the same data points is Tnoutdoors9 but he hasn’t been posting much for a few years. That being said Buffman Range is absolutely the best channel on RUclips the actually is testing ammunition and body armor!
Thanks brother! Keep up the good work Sir!
Drew.
Thank you very much for the kind words!
Thanks for the test, it illustrates quite well the discussion we had on your previous test about subsonic 300blk for self defense!
I did a bit of research and realized 1:5 twist rate barrels are what you want for subsonic 300 Blk rounds to get the best accuracy. I bought a 1:5 twist barrel for my build and so far it's spot on with accuracy, often shooting holes nearly on top of the hole before it.
Gotta love AAC and PSA!
Glad AAC is doing what they do. I'm excited for their eventual 7.62x39 releases down the road. Maybe we'll finally get some cheap yet "good enough" soft points and HPBT projectiles!
I miss barnaul x39 soft points 😢
@@djmcdonald5508 i do too, i do too.
My 7.5" 300bo SBR running 220gr Hush cycles with no issues. With or without my Silencerco Hybrid 46. Are you rocking 2 t-shirts in the opening? Bold. Showing off your hypertrophy bro. This is becoming one of my favorite Guntube channels. Keep up the good work.
Yes indeed. I always typically wear an undershirt. Habit i picked up from the old man
@@BuffRANGE I'm a AR builder, Cerakoter and gear enthusiasts. I've never gotten into what you do, nor could I. I have to many tangents just in building AR'S. Thankfully I have your channel to educate me, when choosing twist rates, ammo and such. Best subsonic 300bo hd ammo you've ever tested?
As always, Buffman delivers full substance, thanks!
Thank you kindly!
Because I'm usually the guy commenting about the Chrono not working, I just wanted to be fair and say that I appreciate whatever you did to get that thing working consistently today. I didn't notice a single failure to read.
I’ve found if the sun is out full force past : PM just to block its path with one of my old plastic tables and run the powered light screens.
You're the best in the business! Thanks as always Matt
My pleasure!
What was buffer weight in 7.5 PSA that didn't cycle?
Waiting for the trigger reset is like waiting for the bus.
I believe you want a higher twist rate for the slower speed ammo to stabilize, alternatively, use the blunt nose stuff which has a more fwd CG than the A-max and will stabilize at the lower RPM. I'm shooting the Ruger ranch bolt gun in 300 AAC 16" barrel and 1:7 twist, sub MOA groups.
*Cries in 5.7* plz Data Daddy give us the goods on the AAC we're dyin' here 😂😂😂🥺🥺🥺😭
This weekend is test time for AAC 5.7
@@BuffRANGE Yayyyyyyyyy
/^.^/ \^.^\
@@BuffRANGE waiting for some ridiculously high priced ss190 black tip 5.7x28 to show up. Got my 5.56 can on the Ruger LC carbine. Hardly silent but hearing safe with no ear pro.
@@eloiseharbeson2483 SS190 has gotten expensive!
Thanks for sharing the information again.
My pleasure !
Thanks for sharing the barrel twist. Please see if you can procure a SiG rattler. Greatly appreciate what you do.
Thanks for your work
My pleasure
I'm convinced the 20 round mag caused the cycling issue.
The 10rd ? Possible :D
AAC seems to be a great value
Would love to see what the 110 vmax from aac does from a 7.5
1.5 for subsonic ammo is a great group at 100 yards. Need a 1 in 7 twist rate barrel.
Berry plated 220g is cheap and the softer plating allows for expansion at low speeds especially if you just file the copper off the tip, it expands better than the majority of .308 offering apart from maybe sub x.
Solid data thanks!
Great video! I have a couple hundred rounds of the AAC 300 Blackout ammo with the 110gr bullet, just haven't had a chance to try them yet!
They seem underpowered. But for the price I paid I guess that's to be expected.
Thanks for the video!
You bet!
It'd be cool if you tried some 350L subs.
Ohh I have the Winchester 260gr tested :D Suppose I should make a video
@Buffman - R.A.N.G.E. yes please. I've also seen 250 grain flex tip subs out also.
I wouldn’t blame the ammo for a PSA build not liking the ammo. I get sub 1’ groups out to 150y out of my 10.5 criterion core barrel with hornady black 208g amax. Tho it definitely could be a different in hornady vs AAC. Great vid.
This is hilarious your timing. I just had a 300 BO built around a 10.5 core and my bulk ammo ordered for it was H black 208 amax. That is very weird timing. Any general advice or things to watch out for since we basically have the same build? What buffer weight/spring are you running?
@@hannibalbarca2939 sprinco white spring with an h2, but I’m about to try an h1. Doesn’t happen very often (about 1/10 mags) but sometimes it doesn’t lock open on last round. I suspect that the issue is that the gas port was sized to account for suppressed shooting, and so the heavier buffer wasn’t needed. I’m certain an h2 will fix the problem. Here’s my build list. Have about 5.5k into it.
ACOG/fast mount
Modlite setup
FCD sauce
LMT MARS-L
Geissele MK4 rail
Crit. C. 300b 10.5
Geissele SD-E
Hodge BCG
Vltor mur upper
Surefire MD
Radian Raptor SL
Badger SS
B5 sopmod/grip
SLR GB8/gt
Surefire 300sps
@@danielhaley89 a man after my own heart. I just built a hodge build (kind of):
hodge 12.5 bbl
hodge pinch lock 11.5
geissele RE BCG
V7 m4 upper
badger ordnance CH
Thank you for the tip on h1! That will be my starting point. When you shot with h2, was it all suppressed or unsuppressed? If so, high back pressure can or low?
I have had issues feeding subsonic with my 10 round magazine. All off my 30 cycle without issue.
What is the dB rating at the shooter’s ear with the can and subs???
No idea. I don't have the tools to measure that.
You’re the man Mr.buffman!
Why thank you!
I'm surprised to see you testing this. I guess it's a new loading but we all know the results.
Its a pressure issue with the buffer.
The pressure comming off the blast of the bullet is JUST short of it at the specs this bullet is at.
One slight step down in weight should solve the issue.
Or adjust your has block to hold in more pressure (if you have an adjustable one)
Literally he just said this after I typed it 😂
How long for the 5.7mm test?
It's on the table for this weekend!
@@BuffRANGE outstanding.
My Magpul gloves seem to get holes in the thumb and fingers after only a few trips to the range.
Interesting. I haven't gotten holes in the fingers, but have broken the stitching along the fingers.. Luckily I've been able to stich them back together :D
You sure it wasn’t the magazine that wasn’t cycling the ammo? Hard to say since you change two variables at once.
It’s a lack of gas. Some subs right a line of being subsonic in all barrel lengths or possibly going super. If you loaded this specifically for a 7” barrel and got 1050 it would cycle. Having an adjustable gas block would also have helped.
Good video! Just wondering if an adjustable gas block would help give more gas? Seems like the only thing it could do for you is turning down gas. The gas port hole would need to be bigger to help right? I’m learning still so wondering. Thanks!
Dude, you need a suppressor to properly cycle subs at that short barrel lenth.
Indeed. But I don’t shoot subs in guns without checking bullet stability first :)
Can confirm at 300 win mag velocities these are deadly. I push them around 2900 at the muzzle and theyll kill a whitetail deader than dead at any distance you can ethically hit them
Would you recommend for home defense suppressed? I’m building an indoor rig. I have an 8” build I’m more than likely going to switch to a 10.5” barrel with adjustable gas block and top it off with my omega 36m suppressor.
In my opinion, no. Given these are subsonic bullets and the massive amount of penetration you would be better off with an expanding 300 BLK load. Will these work most definitely, but would say something like from Discrete Ballistic would perform better for your use parameters.
Do you ever list the ballistic coefficients of the different ammo you review?
I don’t but if it’s known for a bullet I could.
@BuffRANGE If you feel like going through the hassle of emailing the manufacturer they usually will give you that data
Most of the 200+ grain loads for the blkout is poor accuracy because it just doesn't like to stabilize at such low velocity. I dont go above a 178 grain and it can be fired subsonic.
Might have to look into some lighter 300 BLK subs then or a 1:5 twist barrel.
Theres a whole lot of choice with .308 but the fact is that most of it is meant for those higher speeds. Alot of the soft point and otm have virtually no expansion.
I like the berry 220g bullet just because its design for the caliber and the softer plating actually expands at low speeds especially if you file copper off the tip. Sub x is way too expensive amd they dont even have anything above 200g
I can't believe I bought into 300 BLK when it came out.
You abandon it?
Man I was really hoping you could find one in the gel. Bought some and super curious if it expands at all.
It doesn’t. That’s why it penetrated so deep. The bullet just tumbles :)
@@BuffRANGE yeah thanks, guess I’ll go super sonic. Still got a can so better than nothing.
is there a load for subsonic that expands at all? I get that its basically a pistol round, and they are meant to expand at their velocity, is anyone making a for sure expanding 300bk? Like the Hornady's?
Probably need an all copper expander from like makers or discrete
In your 7.5, what weight buffer do you use?
H2
I honestly want to know what the appeal of .300 Blk is. Yeah, you can get supers, but from the barrel length most people are shooting them from, they still aren't above the minimum threshold for cavitation damage from a spitzer projectile. It's okay ballistics, if you think of it more as a magnum handgun round. But let's face it; the cartridge exists for the subsonic offerings, which almost always suck. On paper it is matching a .45 ACP. But in reality, most loads use heavy match bullets that don't perform well at subsonic velocity, whereas at least with a .45, or even a 9mm, you can count on bullets designed to perform at those velocities. Without expensive specialty projectiles, the .300 Blk always seemed like a solution in search of a problem to me. I'd honestly rather have a legit pistol cartridge for suppression and a legit high velocity rifle cartridge for everything else. The .300 Blk falls in those over-hyped niche rounds, like 5.7x28, that never seem to perform well in testing.
I don't disagree with you. For me I've found validity of using AP 30 cal laods in 300 BLK and them defeating plates that advanced 5.56 bullets (M193, M855, and M855A1) couldn't defeat, but that's not a common use case for everyone.
I do like me some 5.7 but it in the grand scheme of things will never = even the most compromised 5.56 load.
Adleast your aac fired.. I bought the 110 vmax awhile back and literally half the ammo wouldn't fire the primer was struck and I even ran the ones that didn't fire through the mag a 2nd time and they were just duds personally not a fan of aac at all
As stated, Amax sucks in gel at subsonic velocity. No surprise.
Can’t get these to feed. Two different rifles have the tip nose dive into the feed ramp. All other ammo feeds perfect.
What feed Ramps do they have ?
What mags also? I had to file the guide rails inside my magpul gen 2 mags so that they’d feed the 147+. Aluminum mags were always good
🤷♂️
Did you really just say 300 is 7.62 lol
It is. 300 BLK bullets are .308” aka 7.62
.300 meme out lol.
Don't worry I have 1 more load to make a video on for it :D for now lol
@Buffman - R.A.N.G.E. .308Win kurz lol. Yup. If one is gonna shoot heavy boi subs, it makes sense to have a specific upper built for those loads - barrel twist rate and gas port size. The ammo performance did what it was supposed to do. It's a good offering. Although, I don't see the point of using an A-Max bullet. The same performance could be achieved with standard fmj.
@@Enjoyer.762 In all honesty that's where I'm at. These bullets at subsonic speeds lack terminal performance. Why spend $$$ on Amax and SMK when an FMJ can do what's needed.
@Buffman - R.A.N.G.E. Have you spoken with PSA about this? I agree.
@@Enjoyer.762 I can. I have one of the guys at AAC, let me ping em :D
Good video, thank you. Typical worthless 300 bo subsonic performance!