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Benchmark & IMR 4320 for .223

Discussion in 'Shooting Related Threads' started by kgp912kgp, Sep 10, 2013.

  1. kgp912kgp

    kgp912kgp Active Member

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    Not Trapshooting related but is shooting/reloading.

    Anyone have any experience with the mentioned powders for .223? I am usually shooting Win 748 and Hodgdon Varget. Any info would be nice as there is not much info on the Hodgdon reloading center for these 2 powders.

    LC Brass

    Hornady 55gr V-Max
    or
    Nosler 55gr BT boattail
    or
    NOsler BT lead free spitzer

    Winchester SR primer
     
  2. halfmile

    halfmile Well-Known Member

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    I never heard of 4520. 4320 is too slow for your application unless you shoot heavy bullets.

    Varget & Benchmark are just about twins.

    748 is good.

    Try accurate 2230, or 2460 might get you a little more FPS.

    Vihtavouri 133 & 135 are good but pricey.

    mash the link for more, but this is not MFR info with lawyer loads.

    HM
     
  3. kgp912kgp

    kgp912kgp Active Member

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    Yes I meant 4320 (typo).

    Here is what Hodgdon shows for their listed loads.

    55gr BAR TSX FB at 22.1 grains 2805 FPS
    55gr SFIRE at 23 grains 2796 FPS
    55gr SPR SP at 23.5 grains 2874 FPS

    These are a bit slower but these are the begining loads and I can inch my way up but just can't find any data for my bullets.
     
  4. halfmile

    halfmile Well-Known Member

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    If you want velocity go with the accurate or the VV.

    Your barrel length will affect velocity. If too short slower powders will not burn completely and stuffing more powder in will be futile.

    The pressure data on mfr sites is a better guide to your potential with any given powder. Remember, they can't possibly test or publish all possible loads.

    As far as the particular bullets are concerned, I tend to treat all bullets of a given weight just about the same, especially in the lower pressure ranges.

    When you find disparity in published data don't take it too serious. Just use good practice and develop your own loads. (a pierced primer means back off)

    HM
     
  5. AAtrap

    AAtrap Well-Known Member

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    I shoot the same combination of brass, bullets and primers as you do using 26.5 grains of Reloader 15 (took the place of reloader 12).

    Steve
     
  6. John55

    John55 Active Member

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    Benchmark is my #1 powder for 223 loading, have had excellent results with bullets weighing from 50grs thru 60grs. I load many 55gr NBTs and accuracy has been excellent. Just use the starting loads and workup with your bullets. BTW, it runs through a powder measure very nicely as it is very small grained.
     
  7. wayneo

    wayneo Active Member

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    20.5 grains H4198 with a 52 gr. Sierra HPBT Matchking. Deadly out of my XR-100. Not to bad in some AR's too. Tried the IMR 4198, staying with the Hodgdon.

    Wayne
     
  8. claybrdr

    claybrdr Well-Known Member

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    Here's my favorite one with Benchmark: 23.5 grains behind the Sierra 69gr HPBT Match with CCI BR4 primers.

    Favorite with Accurate 2230: 25 gr behind the 55 gr Hornady BT FMJ with WSR primers.
     
  9. Robb

    Robb Member

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    Way back when I thought IMR 4895 was the stuff for 222-223. Can't remember but I think it was a compressed load. Cut paper all day with Hornady 55 SX.
     
  10. School Teacher

    School Teacher Well-Known Member

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    Like Robb I like IMR 4895 for the .223. When I started reloading metallic, I wanted a powder I could use for .223, .308, 30-06 and .35 Remington. Good old IMR 4895 had published loads for each of these cartridges.

    For the .223, I loaded 24.5 grains with the Speer 52 grain BTHP match bullets for about 2850 fps and started shooting 1/2" groups in my Ruger 77 long Range Rifle with very little experimenting. I really liked this load. The Speer manual said that I could load up to 26.5 grains for about 3150 fps but I did not see the need as I was shooting paper targets at 200 yards and under.

    As I was also using IMR 4895 for the .308, 30-06 and .35 Remington, I bought a couple of 8 pound kegs. I am glad I did as I still have about 1 and 1/4 kegs left.

    On a whim, I bought a couple of 2 kg. packages of VV N133 and loaded 21.5 grains with the Speer 55 grain spitzer soft point for about 2750 fps. I was going to use these on ground hogs but never got around to it. These shot well but not quite as tight as the IMR 4895 loads. I have most of the VV N133 left.

    It may not be accurate but I remember reading somewhere that 2800 fps was a good all around velocity as to barrel life and accuracy.

    I could make do with IMR 4895 for just about everything metallic I shoot for the rest of my life.

    Ed Ward
     
  11. Crunch

    Crunch Member

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    Alliant Reloder 15 with the heavier bullets....55, 60 grain. It shoots bugholes in my rifle.
     
  12. kgp912kgp

    kgp912kgp Active Member

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    I have good reason to eventually try the 4895 and really love the Varget and 748ball. But the 2 powders in the subject line are what I could find last week. I am not overly concerned with finding a great load with the benchmark, so I am going to work throught the 4320 first then once I find something that works for it I will move on to the Benchmark.
     
  13. hmb

    hmb Well-Known Member

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    4895 is the way to go. HMB
     
  14. kgp912kgp

    kgp912kgp Active Member

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    Anyone have any experience with the mentioned powders in the subject for .223?
     
  15. kgp912kgp

    kgp912kgp Active Member

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    Benchmark or 4320?
     
  16. Barrelbulge(Fl)

    Barrelbulge(Fl) Banned User Banned TS Supporters

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    school_teacher, I use IMR 4895 for my 308's and would like to use it with my 223's but I like the heavier grain (69 as stated above). Do you have a recipe for the 69 grainers? Thanks, Mike.
     
  17. AveragEd

    AveragEd Well-Known Member

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    My only .223REM rifle is a Remington Model 700VTR, the varmint/tactical one with a triangular barrel and muzzle brake in a Desert Camo synthetic stock. I use 50-grain bullets and after trying Sierra, Hornady and Nosler bullets, found it likes the Nosler 50-grain Ballistic Tip Varmint bullet best. For powder, it came down to Varget and Benchmark with Benchmark being just slightly better in accuracy and 180fps faster.

    My rifle's barrel is only 22 inches long and over an inch of that is lost to the internal muzzle brake, so it doesn't have as much effective barrel length as most .223s but it still averaged 3,212fps with 25.0 grains of Benchmark. The 100-yard group size was 0.270" or just 0.046" larger than the bullet diameter. The 50-grain Berger shot into 0.630" and the 50-grain V-Max punched a 0.773" hole.

    My other .223 is in a Remington XP-100R and it likes the 50-grain Berger over 25.0 grains of Varget. That load clocks 2,524fps out of the gun's 14.5" barrel and shoots into 0.737" at 100 yards.

    My son has a Model 700BDL .223 that loves the Sierra 52-grain MatchKing bullet over 24.5 grains of Benchmark - 0.380" groups at 3,095fps.

    Ed
     
  18. School Teacher

    School Teacher Well-Known Member

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    Mike (Barrelbudge PA):

    I do not have any experience with bullets heaver than 55 grain in the .223. If you do a GOOGLE on IMR 4895, 69 grain, .223 you should get several leads.

    With the heavier than 55 grain bullets you also have to figure in twist rate and the type of firearm. A bolt gun may shoot well something that an AR platform does not or that may damage an AR platform.

    From the few of many posts that I have read it seems that IMR 4895 has possibilities. It may not produce the highest velocity but it may give better accuracy.

    Ed Ward
     
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