TESTED: Hornady Sub-X 190gr 300 Blackout

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Hornady's SUB-X bullets are optimized for expansion at subsonic velocities. How well will these bullets perform for 300 AAC Blackout? That's the question we'll answer in this video!
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[@kevinwells4955]

I've been loading the Sub-X for 2 years now and have taken a lot of hogs with it. My load of CFE BLK is 11.8 gns with a CCI Mag primer which yields 1065 fps avg with an SD of 9 and 1 inch groups at 100 yds.

[@kevinwells4955]

@@allthingsconsidered3211 16"

[@kevinwells4955]

@Operational AF I seat mine to CBTO of 1.550, using the Hornady 8-30 insert. That gives me about 2.065 OAL, give or take .001 or so. Yeah it's hard to measure OAL with a polymer tip.

[@ahns1170]

At what distance are you taking these hogs?

[@randomguy1371]

Have you tested how low your velocity can be before expansion isn't reliable?

[@JaronActual]

@@randomguy1371 Hornady claims they expand down to 900 fps.

[@craigmelchiano72]

Thank you so much for taking the time to create such a professional and complete video on this topic. Really appreciate it.

[@Ultimatereloader]

Glad it was helpful!

[@MrTeamZissou]

Now do the Lehigh Defense 194gr maximum expansion if you haven’t already. You’ll never go back.

[@donrichter3523]

@MrTeamZissou, you will go back when your broke. It’s criminal what Lehigh asks for these things.

[@BcFuTw9jt]

I've taken 6 mule deer and 2 antelope with these from a Ruger American with a Silencerco Harvester, from 25 out to 165 yards. Sometimes they expand some haven't. Shot placement is really critical with them

[@NelsonZAPTM]

What distance are you zeroed and what are you dialing for 165?

[@vprsrul]

I literally just loaded the same projectiles tonight before seeing your video, I look forward to shooting them. Awesome video!

[@lmnhd1971]

Let’s see you do the 190 subx in a 30/30, would love to see that. Keep up the great videos..

[@gregoryhamer6027]

We make a 175 grain with no boattail for this application.

[@danpeppers5564]

Ive been loading with the sub-x for 6 months now, came up with the same exact load you have 12gn CFE 190 Sub-X...love them for home defense. 10.5 barrel suppressed.

[@brianonthego]

I sure appreciate the professional way you make videos.

[@rjo49]

I believe that is just the way he thinks. Solid, logical progression from idea to plan to action to reporting, everything in balance.

[@ericammerman4041]

I love the sub-x, load mine at 12.0 as well and have not had any issues. I use Berry’s for steel and they run good as well. Great review man!

[@chandlerray5553]

Great review man. I’m a believer in hunting with these even for larger game at subsonic speeds. I’ve seen great results in my own testing.

[@BrassBashers]

Yeah I've always heard not to use subsonic when hunting with .300, but what's the difference in between say this round/a soft point bullets flying at 1000 fps and say a .357 soft point flying at 1000 fps?? Not much really, and I've had zero issues taking hogs with a .357.

[@jesusisalive3227]

Subsonic is a weird animal! If you punch the numbers it's more efficient than supersonic. I'd like to get a blkout just to play with subs.

[@ravissary79]

@@BrassBashers it seems a bit terminally anemic, what's it like on game?

[@TheFlyingZulu]

@@ravissary79 190gr bullets going 1000fps is still a lot of energy transfer... It'll kill for sure.

[@ravissary79]

@@TheFlyingZulu I'm talking about compared with the alternatives... like the various 200+ grain copper expanding offerings that expand 2-3× bigger than the sub-x. If you're interesting in ethical hunting, poking an itty bitty hole to get the bare minimum done, and perhaps letting them run away, is less than ideal.

[@sixtofive]

These look like a great option to try out! My current sub sonic plinking load for 300 blk has been using Missouri Bullet Company's 238 grain powder coated bullets with 11.0 grains of Vihtavuori N120. It definitely helps having the 300 blk specific pmags for those missiles. With an average velocity of 1070 fps from the 10.5" barrel those rounds are carrying 600 ft lbs of energy with almost no recoil. It's fun!

[@rem3105]

I've been using Berry's 220 gr. and CFE Blk (or 1680)for steel, surprisingly good accuracy. I will have to try some of the "SuBX". Big fan of 300BO....

[@ChilangoDios333]

I've used berry's 220 gr and they work great. But I wonder what is more terminally effective considering price. And if you loaded all to 1000fps Berry's 220gr that tumble Hornady 190 that expand Solid copper hollow points ~200gr Obviously the copper is giving you the best expansion but $1 per round is pricy I'm torn between the Hornady and the berry's

[@lentztu]

I love these tests. You do them better than most

[@akrifle3]

Great! I’d love to see you try with: 1. Lehigh 194 max expansion 2. Sierra 220 MK BTHP 3. Sierra 220 Pro Hunter 4. Barnes 200 flat base TSX or TTSX ( i want to know if their wonderful, huge expansion will happen at1050 fps). I could mail a few.

[@pjbiggleswerth8903]

8:38 I've been watching from the start, subbed. Amazing presentation. Clear info. Reloading was really good, the balistics. 10/10

[@chrisfischer1910]

Look into Lancer magazines for 300 blackout. They allow for the longer tip of the subsonic rounds. I have several and they work great!

[@blancs3030]

I like using a lead cast 235 gr hollow point from noe molds. I use soft lead bhn maybe 10 with 10% of tin. It mushrooms really good.

[@tke466]

I saw the same result on a Black Buck I shot at 166 yds. Used 1680 powder and the same fps with an oss can. Extracted bullet looked the same.

[@tonybailey89]

Excellent testing! I have 250 of these along with 250 of the 205gr SCHP maker Rex rounds loaded up for home defense!

[@texasbradley]

Very impressive projectile! There aren't many that will expand at that velocity despite claiming that. I've also found my lead cast hollow points mushroom quite well at subsonic speeds

[@rawtoe437]

The load that works the best for me after weeks of testing using bolt action and several AR platforms in 300 blackout loaded with sub-x bullets is 7.8 gr of Lil Gun. I have harvested many wild hogs with that load with zero issues. Just bought a Iray Rico Bravo and that is a huge game changer for hog hunting when you own the night. My weapon of choice with this load and my new Thermal scope is my Rock River Arms in 300 BLK. I will be folding up wild hogs like cheap tents with this rig.

[@NelsonZAPTM]

What velocity are you getting? I'm 8.3 grains for 1050 fps.

[@rawtoe437]

@@NelsonZAPTM I'm getting the same velocity with around 20 fps deviation depending on temperatures at the time, and the cold bore shot is always around 40 fps slower than the 3rd or 4th at 1050. Elevation will play a big role too.

[@FJB2020]

Running Sierra Match 210 with 11gr of 1680 in Starline brass and CCI 400 primers. OAL at 2.170 and so far they are doing very well out of a 7.5" 1:8 twist pistol.

[@jgranger2002]

That's the best performance of this bullet I have seen. The other ones I have seen have really uneven expansion.

[@jamesmbutler]

I"ve been using Berry's 220 gr. w/ 11.6 gr. of ACC 1680 - 1012 fps through AR15 braced pistol w/ 9" barrel, suppressed w/ Omega30.

[@CCXRS7]

My two typical loads for 300 BLK are a super some 125 grn Speer TNT on 18.5 grns of H110, and a subsonic cast 230 grn Lee 309 on 11.6 grns of 1680. Both are well suited loads to a 10.5" barrel and both are relatively inexpensive to load in bulk

[@caseysetsodi1990]

Best powder for 220 bullets that I have tried is LT-30, sounds crazy but small temp. sensitivity and it’s a benchrest powder so small ES and accurate. Not one you see come up in forums etc., but works great.

[@chevrofreak]

Have you ever tried LT-32? I have some of that on hand, but no LT-30.

[@caseysetsodi1990]

@@chevrofreak .. have not tried LT-32 I have some too but takes awhile to use up the LT-30 with subs .. might have to look at LT-32 though it’s a great powder

[@mikeo4899]

I’m running a 1:5 twist barrel but what I would suggest is the 188 discrete ballistics Selous bullet. Your 190 load would be perfect for that too.

[@csdsmd123]

Very nice I had the same results. You should also try the sig 205 sub tipped hunting rounds. I couldn’t get 1 round to stay in 2 gel blacks. They keep pushing.. Zero expansion or retention. I couldn’t believe it. The maker Sub 200 gr Rex rounds are amazing!!! I’d like to see those through glass or metal with and these 190’s from hornady. Awesome gun as well. Great videos. Keep them coming.

[@davidtolley1374]

I'd would also like to see the Maker Rex's but through bone or simulated bone. Supers and subs.

[@NelsonZAPTM]

Why glass and metal? Are the pigs you hunt driving patrol cars?

[@GatorAaron]

I've tried the Sub-X and love them for use beyond steel. I've loaded with H110, CFE BLK, and Lil Gun. I've found better consistency with CFE BLK, but Lil Gun isn't bad either. I just got my hands on Shooter's World Socom and am inteto try out the sub loads with that as well. Funny I've been about to load more of these and saw this. Keep on testing!

[@ccw22lr]

I use the Sierra 220gr pro hunter over imr4227. The cannelure lines up nicely for an easy roll crimp. The soft point/ round nose feeds great through standard pmags. Just for plinking, wouldn't echoed them to expand even with the soft point

[@mackenziejones4890]

How do you think it would do without the red rubber plug in it

[@doylethorn9251]

Interesting to note, The Hornady factory load for this bullet is the ONLY 300 Blackout factory load that has passed FBI certification. It has worked well for me as a "Duty" load. It also has taken Hogs and Deer out to 75yds with no issues.

[@trentonfiffia8063]

Out of what barrel length

[@doylethorn9251]

8 1/2" Barrel @@trentonfiffia8063

[@doylethorn9251]

@@trentonfiffia8063 8"

[@echofoxtrotwhiskey1595]

The only subsonic maybe. Plenty of super loads can pass FBI testing.

[@jtkrpm1]

11.5gr reloader 7 is about 1050 behind a 190 sierra matchking. Haven't come across the sub x bullets yet

[@psyclr]

Nice! Thank you for another fine presentation!

[@peter1873]

Love your channel man Cheers from South Africa👌👌

[@Ultimatereloader]

Thanks Peter!

[@tomac314]

Interesting. I have always used 220 gr Sierra Match King on my loads all the way back to when it was .300 Whisper or .300-221. I had never considered the lack of expansion with sub-sonic velocities.

[@LivnRaffe]

So, I'm an 07/02 myself. Why would you not use denim layers for your gel blocks to tame the yaw on the HPBT that was exiting prematurely?

[@cz-bundy6896]

I think I loaded my first sub x bullets 2 years ago? 11.2 grs was max for my elevation. They are great and more effective on big jack rabbits than the 200 gr match bullets for sure. I'm dying to get a yote with one

[@kheavrin]

I agree with several other comments that a faster twist rate might be the ticket for the "gel exiting." It might help with expansion too. Another idea would be filing the nose of the HP bullet to give it more opening for fluid entrance. I would really be interested in the results of that.

[@dannymeyers5240]

Just picked up a couple boxes.....🙂. Timely review.

[@oldschoolprepper2273]

I would be curious to see what these bullets looks like in gel at supersonic it would be interesting to see if these acted like varmint bullets at twice the weight

[@jrwmaxx]

Just picked up 100 of these bullets. Can't wait to load them for a trial run.

[@rswack3378]

Missouri bullet company has some 245 gr coated lead bullets. Come out right at 1050 front my 16” Howa bolt gun. Favorite load to shoot with a can. Super quiet.

[@guardianminifarm8005]

Well done. Interesting but very good results. Thanks.

[@ppmnox]

excellent video. inspired me to take the leap and start reloading. especially 300blk!

[@Ultimatereloader]

Good deal!

[@jims261]

I’ve been loading the 220 grains Sierra match Kings shooting steel

[@billcox2243]

Gavin, take a look at Maker’s bullets. He makes 300 BO specific bullet in subsonic and supersonic and I think that they are reasonably priced. P.s. sorry I got this out of order but the review was well done and very informative. I’ve been watching your channel just about since you started it. It’s been a pleasure watching you grow as a KZbinr and an “influencer”. I say this with all of the positive references and none of the negative connotations.

[@JoeyBaby47]

Those remind me of how the Black Butterfly bullets expand.

[@billcox2243]

@@JoeyBaby47 yes sir it appears that black butterfly is using maker bullets. Maker does have 300 BO bullets that expand very well at subsonic velocity.

[@DaleRoach-y7b]

I did a side by side comparison using H-110 and CFE BLK. Shooting from a 10.5 " suppressed barrel, the difference in SD was very apparent. With comparable velocities, the CFE BLK had SD of 6 with the H-110 showing SD ranging from 40 to 21. I live in an area with extremes of temperatures +90 to -20 and an elevation of just less than 3000 MSL. Because of that, I wanted a FPS in the 1050-1070 range. CFE BLK 12.3 grains was the sweet spot for me.

[@DaleRoach-y7b]

I did some speed checks and not sure but this time at 11.3 grains, the velocity was right at the speed of sound. Dropped down to 11 grains of CFE and the velocity is more what I wanted.

[@DaleRoach-y7b]

can't type worth a damn today. 12 grains of CFE BLK

[@christopherwedemeyer2993]

I love the Lehigh maximum expansion over 12.1 grains of CFE Blk.

[@parkscam8295]

Subscribed!! Excellent video!!

[@kevinlawrence9629]

Great vid, I subbed. More .300 BLK vids👍

[@bobs243imp]

I have had good luck using VihtaVuori N32C Tin Star since it still offers very good fill ratios with almost any bullet that I shoot from my Thompson .300 Whisper Super 14 barrel with anything from the 115gr Berger to the Lyman 190gr bullet. N32C is interesting since it does pretty much fills the case and almost all of my loads are subsonic with very consistent shot to shot velocities. Bob B

[@scottmerchant3935]

Great job on this video , very helpful .

[@chach3]

I have been looking for these to load, but haven't had any luck. I will have to keep my eye out to see if they are in stock anywhere.

[@edcjadon9002]

i'd be curious to see the ballistic results of that 190gr sub-x under various twist rates. 1x8" leaves a little bit to be desired when there are barrels out there pushing 1x5"

[@NelsonZAPTM]

1:8 should be fine for 190's. I've a 1:7, good up to 220. 240's are sideways at 200 yards.

[@sureshottactical5403]

I chronographed several subsonic and supersonic 300 AAC manufactured or reloaded ammo recently. The Sub-X 190s have a little higher velocity than yours, of course, my CFE BLK charge is different starting at 12.4 @ 1077, but shorter barrel. I was able to trap one of four Sub-X 190 using 24” of damp corrugated cardboard (my poor boys ballistic gel), exiting at 20”, and found nearby. Expansion is a similar experience. Happy to share spreadsheet and photos if you tell me how to attach / send.

[@adventure5413]

Lancer 300 blk mags are the best, try them I'm sure you'll be pleased. Love the vids

[@MSSynsyterGates]

Gavin, you have to try 300 blackout with a 1/5 twist barrel. All the tests and things I've read show you'll get the best results out of 300blk

[@donrichter3523]

@MSSynsyterGates, and why is that?? I’ll tell you why, because heavy subsonics are iffy in a 5.5” barrel. That’s why the Rattler uses it. 1-5” twist is hardly necessary for 190gr bullets.

[@NelsonZAPTM]

​@@donrichter3523 1:5 will stabilize anything up to 250 grain subs in my experience. 1:7 is good up to 220. I think that is why "best" 1:8 is fine for 190. Happy?

[@turnerables]

Wonder how these compare to the lehighs

[@v8esprit]

I just got 20 boxes of SubX. I have yet to load it up but I will be making a subsonic recipe for a 9inch PWS Mod2 300blk AR. These bullets are hard to find and I got a great deal on them. I count myself lucky.

[@yugbe]

Going to press some of the 190gr subX this weekend. Not 100% on which powder yet.

[@DimaProk]

Extreme spread of 107fps SD of 38, this powder sucks for subs. Also your high at 1093fps that's on the border there, I would drop the charge to stay around 1030 - 1050.

[@roughneckmp]

Oh crap,… Gavin got his SOT!!!

[@x-calibearusallc]

SOT = Special Occupation Tax. Just another hoop when you get an FFL 07.

[@guyminer3168]

Nice work Gavin!

[@greatdane3343]

I've been shooting Maker Rex 200gn for quite a few years and their expansion and consistency is phenomenal. I've bought some Sub-X's to try as they are a fair bit cheaper.

[@MrGameMasterSir]

I know I'm way late on this, but Brownells mags have a lower cut and work well with the sub-x's. Magpul 300 blk mags are unmatched though

[@notshared2543]

Interested in seeing the Berry's in the gel and CFE BLK vs H110 std deviation in vel.

[@hutehund9519]

Really enjoyed this one... Please redo this for Guy's 45-70 with the Sub-X 410gr .458 bullet

[@NateFreelRacing53]

I wonder how hard you could push the 190 sub x. Seems like it would be a really hard hitting round with good energy transfer at super speeds.

[@whitetailhunter9421]

Someone should test that out, they would probably do real good up to 2200-2400, but weight retention would start to suffer, just guessing.

[@NateFreelRacing53]

@@whitetailhunter9421 seems like something Gavin should give a go.

[@R_Dio10]

I’ve had bad luck with the Hornady factory load using these bullets. The bullet tip gets caught on the barrel feed ramp.

[@bench175]

What barrel is that?

[@NelsonZAPTM]

Try a different mag or follower

[@sthompson5254]

Just ordered these and discreet ballistics 188 grain that supposedly open as low as 750fps. I don't have ballistics gel, but I do have hogs.

[@louie_ooeygui]

Awesome video! I think I found my new 300blk projectile. I've been using ELD-X 208, with 11.6g of CFE BLK.

[@Ultimatereloader]

Thanks Lou!

[@jisoHAN9]

Great video! These bullets are awesome for whitetail - great expansion with a suppressor! Last year I shoot a deer at 100 yards with these bullets in my suppressed 300BLK AR pistol . . . I realized I'd never heard a bullet hit a deer before - thaaawunk!

[@pipegang6497]

Wonder what would happen if these were shot at super sonic speeds would they just fly apart or just explode on impact?

[@tlm20002]

I have been using 11.1gr of CFEBLK with the Sub-X getting speeds of about 995 FPS, amazingly quiet through a can, 10.5" barrel

[@MrJRon115]

well-done video!! I loved it!

[@briankeithwood]

Love to see you try other expanding subs. Maker trex, for example.

[@erklaerbaer01]

Do you think this would stabalize in a subsonic 308 winchester round in a 1:10 twist? 24" barrel thanks in advance!

[@NelsonZAPTM]

Did you give it a try? Any good?

[@MarcoAtlarge]

Picked up a box to make some light loads for a 30-40 Krag. It might work.

[@geraldblackburn4883]

I have a 300BLKT and it is 10.5 in barrel, and I want to get a suppressor. I built a bench, and hope in the next few months, or a bit more, to have the ability to load, and I would like a link to your basic loading bench for beginners. Another person who loads, stated his best balance is the 125gr bullet and optimum speed for this rifle. I like the 147gr, but after I learn to load I may go with the 125 gr Super and try some others in sub.

[@bsievers33]

Berry 220, Barnes 110 and Hornady 190 Sub-X. The Hornady gave me a 1.3 inch at 100yds

[@J.Young808]

I have about 5 300 BO P-mags. Didn’t know they make a Subsonic mag.

[@kyle4910]

Gavin, you need to try the 200gr Makers bullets or the 220s. They are much better than the subx bullets

[@GatorAaron]

I'm interested to see this review as well.

[@H.R.6688]

Hey, I use 12.0gr cfe blk for my 300 load too. But under a 208gr hornady.

[@careyhammett9253]

I’ve been loading 200gr Maker Rex bullets for years with excellent results. I’ve killed dozens of feral hogs with them and as long as you do your part they are one stop shopping!

[@mkupkatx]

220 grain Berry's plated .308 bullet sitting on top of 6.0 grains of TiteGroup with Federal 205 Small Rifle Primers. Bullet seated for a COAL of 55mm (2.165") I got an ES of 6 fps !!!! and Std Dev of 2 fps! With a standard 8" barrel it will eject the rounds but the BCG does not travel rearward enough to pickup a fresh round from the magazine

[@thastinger345]

194gr Lehigh max expansion over 9.9gr IMR4227 and Rem 7.5 primer

[@jaredcrowley5666]

Please test this round supersonic through a 300PRC and a .308.

[@chrisharris9710]

Try some Lehigh bullets. I use their 208 gr (I think) controlled fracture 30 cal bullets. Would love to see them tested. If you can’t find those bullets I would send you a few if you would test them.

[@antonhuman8446]

Outstanding bullet for sub-hunting. Hornady is. And remains eight steps ahead.

[@Hollywood41642]

11.0gr of RL7 at 1042 fps. in a CVA Scout 16.5 barrel . And cci #41 primers.

[@spyderxtra777]

Cfeblk should probably only be used if you have a picky gun that won’t cycle subs with other powders. it only works well with compressed loads which is annoying for some projectiles. It has the highest charge weights for less rounds per lb, and it generates more gas in the face than anything else. My gun runs 242gr coated cast with 7.5gr lilgun or 8.5gr h110 at 2.05oal. 8 lilgun and 9 h110 with 208elds at 2.15oal is another favorite. Good accuracy and SDs too.

[@donrichter3523]

@spyderxtra777, it’s an effing terrible powder! I’m just glad all these yahoos are buying it instead of the powders I prefer.

[@spyderxtra777]

@@donrichter3523 eh I don’t know if I would say it’s terrible, it just has a very limited application. Being: 300 blackout subsonic loads, ONLY for rifles that have trouble cycling subs, AND only if you are willing to screw around with overall length to insure compressed loads. Currently I use it for my bolt action 300blk, I make sure my loads are compressed and I get great accuracy with it. And gas in the face isn’t an issue with the bolt gun. But I probably won’t buy more when I use it up.

[@rootjr.3658]

I'd like to see what these do closer to 1800 fps or as fast as one can get them going out of a .300 Blk.

[@roul3688]

I wish I could find these somewhere

[@RROutfittersofOcala]

Hornaday now makes a .308 130gr FTX would like to see how they preform in 300 blackout gel test.

[@michaelcrossman9692]

Enjoyed this and all your videos. What buffer weight do you use in your 300 AAC Blackout rifle for suppressed, subsonic ammunition? Thank you in adivance for your response.

[@sladeoriginal]

in general, measurement of expansion in the industry doesnt paint the full picture. what is seen is the final expansion, of course meaning the petals had to open up wider before reaching that final expansion.

[@davidmcintyre5326]

Recently I watched a video where you were talking about a personal sniper .308. You put a new barrel with 1 to 12 twist. Why that twist?

[@ahns1170]

I had a roe deer running from me after a direct hit at 100m. I will not use SUB-X anymore. I would love to see an expansion test on animal tissue.

[@NelsonZAPTM]

Poor shot placement. Not meant as an insult. Subs just don't kill as quick unless it's a brain or heart shot.

[@fabulousoffroaddesigns5080]

I wonder how they'd shoot from a 16.5" 1in10" twist 308?

[@IWatchedWhat]

I just picked up a box to try, but normally I shoot powder coated 230gr NOE cast bullet for my subs.