What's your H335 Load for .223/5.56?

[breeze15]

This will be for Target out to 375 yds. { max distance available to me } and for coyotes. Thanks for your quick response.

 

[Charlie98]

This will be for Target out to 375 yds. { max distance available to me } and for coyotes. Thanks for your quick response.

Well... the big question is... what are you shooting them in?

 

[breeze15]

4 different ARs. 16" to 20" barrels. All 223 Wylde, all 1-8 twist, all mid length gas system. Thanks

 

[Charlie98]

4 different ARs. 16" to 20" barrels. All 223 Wylde, all 1-8 twist, all mid length gas system. Thanks

That's basically what I build and run... 16" middys. I would stick to 'service rifle' data...

 

[breeze15]

Thanks.

 

[79camaro]

Although not for accuracy per se, I am glad I found this post. I, as well kept finding very conservative load data for 55 Hornady and H335. I loaded A BUNCH with 23.5 grains, as I thought I was pushing the envelope but now I think I am going to bump up to at least 24 or 24.5. My reason is that my 23.5gr loads are giving some of my ARs fits as far as cycling. I checked EVERYTHING (gas port alignment, gas key, buffer, spring, etc) and I truly think my loads are a bit on the wimpy side. Even when I shoot Wolf steel case cheap stuff, it cycled all my guns perfectly. So, the only factor here seems to be the ammo. I just wish I had done more testing at the range with all my rifles before loading so many rounds. I think making my reloads a bit hotter will solve my cycling issues, and I can relegate the "wimpy" loads to my bolt action .223 Ruger.

 

[gifbohane]

My 20 inch barrel with H335, 24.5 grains, 2.200 and 55 grain bullets get me about 3000 fps on my Labradar. Factory gets me about 3104.

 

[DMW1116]

That’s good to hear. My 20” gets best accuracy with a 55 grain Hornady FMJ-BT and 24.7 grains of H335. I was trying for 3,000 fps or so. Sounds like I’m close or maybe a bit over. The same load shoots about average out of my 16” barrel, though I may have pulled a shot in my test group. IFF that shot was pulled, it shoots just as good in each one, thought it was really intended for the 20”. I have another pet load that works really well out of the 16”, thought I’m sure I’m giving up some velocity.

 

[DMW1116]

Double post.

 

[DMW1116]

My 20 inch barrel with H335, 24.5 grains, 2.200 and 55 grain bullets get me about 3000 fps on my Labradar. Factory gets me about 3104.

What would you expect to happen if I were to seat the bullets longer? I’m using it in a dedicated A4 style clone with carry handle sight, so hair splitting accuracy won’t really show up unless I get A LOT better.

 

[ArchAngelCD]

I charge 25.0gr H335 under a 55gr bullet. I don't have my notes to give you velocities and group sizes but the groups are good in my AR.

I edited this post to remove the incorrect and dangerous char weight. My apologies for the mistake.

 

[jonas66]

@ArchAngelCD... sorry, what?!

I charge 35.0gr H335 under a 55gr bullet.

That must be a typo...

 

[bullseye308]

I charge 35.0gr H335 under a 55gr bullet. I don't have my notes to give you velocities and group sizes but the groups are good in my AR.

I’m not at the bench right now, but I don’t think you can cram that much in a 223 case. Gotta love typos.

ETA. And this boys and girls is why you always double check any data online. Now I’m sure ArchAngelCD made an honest mistake, and it could happen to anyone just as easily, always verify any data, even in the books.

 

[Lennyjoe]

I charge 35.0gr H335 under a 55gr bullet. I don't have my notes to give you velocities and group sizes but the groups are good in my AR.

Definitely a typo. I’m guessing he meant 25.0 grains.

 

[gifbohane]

What would you expect to happen if I were to seat the bullets longer? .

I just seat the Hornady 55's to the center of the cannelure which gets me a tad less than 2.200 with range brass. Not trying for perfection.......yet.

 

[79camaro]

I charge 35.0gr H335 under a 55gr bullet. I don't have my notes to give you velocities and group sizes but the groups are good in my AR.

35 grains???? I agree, either a typo or he's the luckiest person on earth!!!

 

[ImjinScout85]

My standard load for the 55gr FMJBT is 25.3gr of H335 with a OAL of 2.20

 

[Charlie98]

I just did some load testing this weekend with a new AR build... 18" rifle-length barrel.

24.5grn H335 and the Hornady 62grn BTHP... 2850fps

LC (Winchester) factory 55grn M193, 3160fps as a reference... so I'm getting close to where the 62grn should be, and given the accuracy I was getting, I'll likely just stop there.

23.5grn H335 and the 69grn SMK gave me 2770fps.

 

[ArchAngelCD]

35 grains???? I agree, either a typo or he's the luckiest person on earth!!!

You are correct, I made big mistake on the charge weight. It should have read 25.0gr H335 under a 55gr bullet.

This is why you should never trust data on the internet. Mistakes can and will happen. My apologies for the mitake, I will edit the original post not to confuse anyone.

 

[ArchAngelCD]

Definitely a typo. I’m guessing he meant 25.0 grains.

You are correct, it should have read 25.0gr charge. My apologies for the mistake and not proof reading.