260 Load Help.. Quick Load???

Discussion in 'Reloading' started by novaman64, Oct 2, 2009.

  1. novaman64

    novaman64 Well-Known Member

    Messages:
    313
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    Mar 4, 2009
    Trying to work up some loads for a new 260 rem...

    Berger 140 VLD Hunting Bullet

    25" barrel
    1:8 twist - 3 groove
    using WLR primers (if it matters)

    I was just looking for some quick load numbers to get me started somewhere. Right now I have 1lb of H4350 and was debating picking up either IMR4831, H4831 or H4831SC... My Speer manual shows that the best velocity with the heavier bullets is with the Reloader 19 or the IMR4831; although it seems alot of people are getting good results with H4831 or H4350...

    Anyways, thats why I wanted the quick load data, or some references on where to start....
     
    Last edited: Oct 2, 2009
  2. 7mm Magnum

    7mm Magnum Well-Known Member

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    Jan 29, 2009
    I ran the different scenarios you had listed and actually the IMR #4831 seems to be the best of your options. I couldn't locate a Berger 140 gr. VLD in the .264 listings,... the only one in that grain weight was a 140 gr. V so that is the one I used in the formula.


    Berger .264 / 140 Gr. V
    42.0 grains of IMR #4831
    Muzzle Velocity = 2779 fps @ 58,138 PSI (MAX PSI = 60,191)
    Projectile energy = 2,400 ft. lbs
    COAL = 2.800
    CL = 2.030
    25 in barrel

    Hope this gets you in the ballpark,... :D
     

  3. novaman64

    novaman64 Well-Known Member

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    Mar 4, 2009
    Cool, thank you.... Now I need to see if I cant find some IMR4831 from any of the local shops... Then its gonna be a LONG wait for my rifle to get back from the smith..... Errrr, I feel like a kid on Christmas again.....
     
  4. 7mm Magnum

    7mm Magnum Well-Known Member

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    Jan 29, 2009
    No problem,... glad to be able to help out. :)
     
  5. USMC

    USMC New Member

    Messages:
    3
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    May 8, 2011
    Here is some load data for you from starting loads to the max. The velocities are based on 24" barrel with berger 140 VLD's. As for the primers should not make a difference I use winchester primers as well. Hope this helps.


    Bullet
    Powder
    Start Load
    Approximate Start Velocity
    Max Load
    Approximate Max Velocity
    Fill Ratio
    140 Grain
    AA XMR 4350
    36.0
    2393
    40.3
    2672
    94.6%
    140 Grain
    RE -19
    38.0
    2395
    42.5
    2680
    100.9%
    140 Grain
    H4350
    37.5
    2401
    41.7
    2672
    96.9%
    140 Grain
    IMR 4350
    36.0
    2433
    40.0
    2689
    95.0%
    140 Grain
    NORMA 204
    38.0
    2425
    42.0
    2682
    96.4%
    140 Grain
    Ramshot Hunter
    37.5
    2408
    42.0
    2688
    92.6%
    140 Grain
    VIHT N550
    36.0
    2419
    40.3
    2685
    90.7%
    140 Grain
    WW 760
    36.5
    2421
    40.6
    2683
    90.4%
    140 Grain
    IMR 4831
    37.0
    2391
    41.4
    2665
    97.6%
    140 Grain
    IMR 4064
    32.5
    2395
    36.0
    2610
    89.5%
     
  6. 5R LR SHTR

    5R LR SHTR Member

    Messages:
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    Aug 4, 2012
    i just got a new 260 as well and i totally hear yah about waiting for it, boy the wait really sucks but man is it worth it when yo have the right hands doing the work on a good gun.

    i just tried RL19 for my break in loads and shot from the hip with a middle of the road load just for break in and i got fantastic results just during break in of the barrel (10x rounds for starters). problem with RL19 is temp sensitivity. i move around alot being in the military so i could be in one spot for a year or two then move to a completely different climate andaltitude i.e. colorado which is where i just came from and there is significant difference in ballistics when it comes to altitude and temp so i favor more insensitive powders, which is also why i am going with H4350. i found that right around 42 grains of H4350 is the ticket behind a 123 lapua scenar. i haven't perfected the load yet but my data and test results lead me in that direction. IMR4831 is also a very good choice but i think H4350 has it beat. i have read alot of articles on this website and a lot of guys choose H4350, but as you know no gun is alike so just test em out.

    i am int h process of giving the 140 AMAXs a try and have some 142 SMKs and bergers on the way as well to try out. once you find the sweet spot of that gun you probably wont want to do any more testing and shoot the snot out of the load you work with so testing a bunch of stuff is worth it. i did it with my 308 5R and it finally paid off. At 300 yds i can hold a one inch group with SMK 175s. unbelieveable accuracy. good luck!
     
  7. jtkratzer

    jtkratzer Well-Known Member

    Messages:
    245
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    Jan 15, 2012
    I found the velocity from 4831sc very disappointing. Got my best from RL22. I have H4350 on the bench I try.

    Primers can make a difference. I have CCI BR2 and FED210GM primers. This is just one 260 I'm loading for now, but a second is on the way.