1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

My fisrt AR and I bought H335

Discussion in 'Handloading and Reloading' started by grubbylabs, Nov 18, 2012.

  1. grubbylabs

    grubbylabs Well-Known Member

    Any one else use this and how did it go? Does this powder do better at the upper end or lower end?

    I have a M&P sport with a 1/8 twist.

    I bought 1lb or H335

    200 Hornady 55grn soft points.

    And so far only about 80 pieces of once fired brass from new ammo I bought.

    Also I have heard that a small base die is in order for such a rifle and I plan on purchasing the RCBS X dies. Any input here?

  2. Walkalong

    Walkalong Moderator

    Most folks don't use small base dies, but they give you a little advantage with tough to size cases. My sizer is standard and I never have problems.

    H-335 works great in .223 and AR's. Plenty of folks use it.
  3. Schutzen

    Schutzen Well-Known Member


    Try 24.5 grains, It shoots well for me.
  4. ArchAngelCD

    ArchAngelCD Well-Known Member

    Agreed, H335 is a great powder for the .223. I use a charge of 25.0gr H335 under a 55gr bullet which is close but not at the top end of the charge range. H335 meters well and burns fairly completely.

    H335 is the canister version of the none canister WC844 which is the military powder used for 5.56mm ammo.
  5. gunner69

    gunner69 Well-Known Member

    H335 has worked well for me too......:D
  6. grubbylabs

    grubbylabs Well-Known Member

    Ok so I may have chosen well for powder and it likes the upper end of the charge.

    But what about the small base dies. A year ago or so I read a thread where every one basically said for the AR plat form you need to use small base dies. If they are not needed then what is their purpose? Thanks.
  7. grubbylabs

    grubbylabs Well-Known Member

    I just noticed that my Hornady book has a max charge of 23.2 grains. For those of you above, where are you getting your data?
  8. Doug b

    Doug b Well-Known Member

    My Bushmaster really likes 24.5 gr. of H335 and a CCI 450 primer and a 55 gr. Nosler ballistic tip.Scarey accurate.Never found a need for a small base die,tried one once was a major pita.
    Last edited: Nov 18, 2012
  9. TwoEyedJack

    TwoEyedJack Well-Known Member

    The only time I use a small base die is when I buy once fired brass. Some machine guns have oversized chambers and if your chamber is cut a little tight, a regular die might not size the brass down enough. I have an AR with a DPMS fluted stainless barrel, and it is definitely on the tight side. Once the brass goes through the small base sizer, I go back to a normal full length sizer for subsequent reloading.
  10. ArchAngelCD

    ArchAngelCD Well-Known Member

    Check the Hodgdon Load Data Site and you will see the charge weights are higher than your book. Compare the OAL in both and you might see why the data is different.
  11. grubbylabs

    grubbylabs Well-Known Member

    I think they have the same data listed on the bottle, looks like it max's out at 26 grains. Interesting:confused:
  12. gunner69

    gunner69 Well-Known Member

    Never had a problem where I needed small base dies.......:neener:
  13. ArchAngelCD

    ArchAngelCD Well-Known Member

    Compare the OAL from both and that may shed some light on the different powder loads.
  14. hentown

    hentown Well-Known Member

    I'm loading with 844, exclusively, for my ARs. I'm using 25gr with 55gr. bullets. I use the RCBS X die, but have never used a small base die. I've loaded thousands of rounds with "standard" dies, and my .223 reloads never fail.
  15. rskent

    rskent Well-Known Member

    335 for light bullets. Varget for heavy bullets.

    I use 23.6gr 335 under a 52gr match king. Shoots great in every gun I have tried it in.
    223, 5.56,and 223 wylde chambers. YMMV.
  16. grubbylabs

    grubbylabs Well-Known Member

    Do you use range brass? I plan on picking up quite a bit as time goes by.
  17. Walkalong

    Walkalong Moderator

    I am shooting range brass right now. Standard sizer. I size to fit a Wilson case gauge. So far I have not had any that would not size to fit the gauge. Never say never though.

    With range brass you need to, besides the normal outward visual checks, check them internally for signs of pending case head separation. This is easy to do. Even once fired brass can be trash if the gun it was fired in has head space problems, or if it is not once fired and someone sized the brass excessively. (Pushed the shoulder back to far.)


    This case would have been OK to fire again, but it is showing the beginning signs of the "rut", or case stretching.

    Last edited: Nov 19, 2012
  18. Krogen

    Krogen Well-Known Member

    I've been puzzled by loading data published for H335 in 5.56mm. If it is truly the canister version of the MIL spec powder, why does the MIL document show higher charges? I have pulled down XM193 ammo and found the powder charge is indeed per the MIL spec.

    When I load to the max charges published in handloading manuals, my velocity falls ~200 fps lower than the loading book predicts and doesn't reach MIL velocities. It's probably not my chrono, because firing XM193 I get within 20 fps of the MIL spec velocity. Recoil is noticeably more vigorous.

    At first, I figured I had a slower/weaker lot of H335. I no longer believe that's the case. By exceeding the published data by 2-3 grains to match that of the MIL spec charge, I'd probably hit the MIL velocity and also match the predicted velocities in the loading books. I'm not comfortable going over published data by that much! I'm quite puzzled by the discrepancy.

    Is this a clear case of the over-conservatism people suspect of commercial loading books? What am I missing?
  19. rsrocket1

    rsrocket1 Well-Known Member

    5.56 is spec'ed at 62,366 psi, .223 Rem is SAAMI spec'ed at 55,000 psi.

    You should work up a load yourself and look for the charge that produces the best groups but stays below the max recommended charge. I started at 23 and worked up to 25 and found that my AR liked 25.0g H335 under the 55g fmjbt. I would have been happy if it were at 23, but there was simply a huge tightening of the group at 25.0 so that's what I load to.
  20. Henry45

    Henry45 Well-Known Member

    This is what I chronographed last weekend w/5.56. Same as you, 55g FMJBT.

    2.20 OAL

    H335 - 24.5 g = 2712 Highest 2787/Lowest 2656
    H335 - 25g = 2769 Highest 2836/Lowest 2711
    2.215 OAL

    WC 844 - 25g = 2745 Highest 2778/lowest 2720
    WC 844 - 26g = 2822 Highest 2845/Lowest 2793
    Also shot some Federal 223 rounds and their total came out to 2845 average.

Share This Page