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becnchmark powder

ChetStaffordChetStafford Member Posts: 2,794
edited January 2007 in Perry Shooter Competition Shooting and Reloading Forum
Nosler shows a max load of 28 gr of benchmark for a .223 Iloded up 3 of these loads the case was full almost to the top about an 1\8 of an inch from the case mouth is this normal for a case to get this full?
In my 300 wby the case never gets anywhere near this full
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Comments

  • dclocodcloco Member Posts: 2,967
    edited November -1
    See www.hodgdon.com for specific information.

    28.0 is over the max charge for 40 grain bullets.......

    Do NOT fire the rounds, you are over the limit.

    http://www.hodgdon.com/data/rifle/223rem.php


    223 REMINGTON
    CASE: WINCHESTER

    BBL: 24"
    PR: WINCHESTER SR



    40 GR. NOS BT
    COL: 2.280"

    VARGET 28.0 C 3674 47,200 CUP
    BL-C(2) 28.5 3612 45,400 CUP
    H335 28.0 3572 44,600 CUP
    H4895 27.5 C 3573 44,500 CUP
    BENCHMARK 27.3 3666 51,000 CUP
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  • perry shooterperry shooter Member Posts: 17,105 ✭✭✭
    edited November -1
    Hello I have never loaded benchmark but as a general rule The faster burning a powder is the less it takes in a case to reach max pressure and then you are more or less forced to only load this many grains .On the other hand the slower the burn rate the more you can load before you have too high a pressure . The slower the burn rate in most rifles the higher the velocity if this highest safe pressure will allow it to fit in the case. I for one like to load a type of powder that fill up the case to the bottom of the neck as then you can'd accidently overload a round. Some people use a long drop tube to allow more powder to pack as they are filling the case and others tap on the side of the case to settle the powder and some of the old manuals have a note on some powders in small cases that it will result in a compressed load . your load is almost at that point. As far as you 300 mag I bet if you tried to use some of the super slow powders like used in the 300/378 Weatherby Mag wildcat the case of your 300 would not hold all the powder to get a full boat load. If the load is in a valid reloading manual for your 223 I would not worry.
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  • ChetStaffordChetStafford Member Posts: 2,794
    edited November -1
    It is a max load in nosler fifth edititon I loaded 3 at starting load of 26gr and 3 at every 1/2 gr up to 28 so I could check for pressure I did this with w748 and rl7 with the starting loads and every 1/2 gr up to max shown for each powder
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  • dclocodcloco Member Posts: 2,967
    edited November -1
    Nosler is not the powder manufacturer though.

    Benchmark is a higher pressure producing powder from Hornady. I would HIGHLY suggest not to fire the rounds.
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  • ChetStaffordChetStafford Member Posts: 2,794
    edited November -1
    I think your right I will not shoot them
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  • mrbrucemrbruce Member Posts: 3,374
    edited November -1
    quote:Originally posted by dcloco
    Nosler is not the powder manufacturer though.

    Benchmark is a higher pressure producing powder from Hornady. I would HIGHLY suggest not to fire the rounds.


    Hornady makes powder now ?????
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  • dclocodcloco Member Posts: 2,967
    edited November -1
    LOL! Hodgdon...the other H word my fingers can type!
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