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Thread: Blue Dot loads for .270W

  1. #1

    Blue Dot loads for .270W

    I've had some success loading down my .243 using Blue Dot powder courtesy of both advice and powder from Bewsher500 on here. It means that I can replicate a .223 load (a 65g Vmax going at around 2800fps) which is great as a foxing round, makes a crack no louder than an unmoderated .22 rf and, at least for my rifle, extremely accurate (3/4" groups of 5 at 100yrds).

    It got me thinking that I'd like to try a similar thing for my .270W - perhaps replicating a .243 90 or 100g load running again at ~3000fps. Has anyone tried this using Blue Dot, and if so, would you mind sharing load data?

    I know what you're thinking - why bother if you've already got a .243 Perhaps like Hillary on Everest - because it's there, and I like experimenting with things.
    Last edited by Tamar; 09-07-2015 at 07:04. Reason: wrote .222, meant .223

  2. #2
    Quote Originally Posted by Tamar View Post
    I've had some success loading down my .243 using Blue Dot powder courtesy of both advice and powder from Bewsher500 on here. It means that I can replicate a .222 load (a 65g Vmax going at around 2800fps) which is great as a foxing round, makes a crack no louder than an unmoderated .22 rf and, at least for my rifle, extremely accurate (3/4" groups of 5 at 100yrds).

    It got me thinking that I'd like to try a similar thing for my .270W - perhaps replicating a .243 90 or 100g load running again at ~3000fps. Has anyone tried this using Blue Dot, and if so, would you mind sharing load data?

    I know what you're thinking - why bother if you've already got a .243 Perhaps like Hillary on Everest - because it's there, and I like experimenting with things.
    Red Dot, yes. Blue Dot no.~Muir

  3. #3
    Speer #11 manual shows a reduced charge for 270win using IMR SR4759;
    20gr for 1651fps to 24gr for 1998fps with 130gr jacketed bullets,
    16gr for 1548fps to 20gr for 1915fps with 100gr jacketed

    Lee Modern Reloading, #2
    100gr bullet (.277)
    IMR4227
    min 25.8gr (2,371fps)
    max 30.0gr (2,710fps)


    Hodgdon's youth load data
    Max load for H4895 is 45.0gr and 2922 fps and 51,000 CUP
    Min load 60% of that charge is 27.0gr for 1850 fps
    90% would be 40.5 grains for 2,630 fps, about like a 6.5x55 factory load.
    100-gr Hornady SPT with 36.0 gr H-4895 for 2,600 fps

    2009 Annual Hodgdon Reloading Guide
    110gr Barnes TSX with 23.6" barrel
    H-4895 43.5 gr 2837 fps 1966 ft-lbs 0.85 inch group at 100 yards
    H-4198 36.4 gr 2815 fps 1936 ft-lbs. 0.97 inch group
    IMR-4895 42.9 gr 2649 fps 1714 ft-lbs 0.84" group
    IMR-4198 34.8 gr 2701 fps 1782 ft-lbs 1.20" group


    130gr Barnes TSX 23.6" barrel
    H-4198 37.4 gr 2712 fps 2124 ft-lbs 0.51" group

    Lyman Handbook 2014
    44.5 gr IMR-4064 90-gr bullet at 2,695 fps

    Last edited by Southern; 09-07-2015 at 05:04.

  4. #4
    Seafire's recipes for bluedot.

    110 grain Hornady V Max:

    20 grains: 2196 fps
    21 grains: 2232 fps
    22 grains: 2302 fps
    23 grains: 2419 fps
    24 grains: 2447 fps...

    At 21 grains.. If a zero is set at 3.5 inches high at 100 yds, it will be dead on at 200 yds and be about 3.5 to 4 inches low at about 240 yds...Plenty good for deer hunting when most are taken within 100 yds or less....

    130 grain Sierra SP

    20 grains: 2092 fps
    21 grains: 2117 fps
    22 grains: 2153 fps
    23 grains: 2181 fps
    24 grains: 2237 fps
    Caveat, Educational use only, if you do not pay attention with these loads you can produce the proverbial hand grenade (easy to overcharge/double charge).
    A young man who isn't a socialist hasn't got a heart; an old man who is a socialist hasn't got a head.
    I have summat for sale; here's the M̶i̶d̶w̶a̶y̶ Brownells UK price... effin jokers.
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  5. #5
    Quote Originally Posted by Tamar View Post

    It got me thinking that I'd like to try a similar thing for my .270W - perhaps replicating a .243 90 or 100g load running again at ~3000fps. Has anyone tried this using Blue Dot, and if so, would you mind sharing load data?
    Why bother? Factory load Norma V-Max 110 grains is running at 3215 fps and is deadly accurate...

  6. #6
    Quote Originally Posted by Muir View Post
    Red Dot, yes. Blue Dot no.~Muir
    Thanks - it was just because I have half a bottle of Blue Dot that I specified this.

  7. #7
    Thanks Southern and Sauer90 - much appreciated. Those were exactly what I was after. I'd read about 'Seafire' and tried to track down that data on other reloading websites, but no luck, so your data were really helpful. I appreciate the risks of overfill/double charging so will take care! I'm guessing that as with the .243 data, there is the warning that to maximise brass life the charge should not exceed 23g or similar. Could you confirm that?

  8. #8
    Quote Originally Posted by Shootgun View Post
    Why bother? Factory load Norma V-Max 110 grains is running at 3215 fps and is deadly accurate...
    Because I was the Elephant's Child who always asked why: I used to take things apart to see what made them tick and I've continued ever since. Tinkering

  9. #9
    I'm lead to believe there is more to consider in the safe use of reduced loads than simply overcharge/double charge:

    K
    The enemy of knowledge is not ignorance, it is the illusion of knowledge.

  10. #10
    Tamar, sounds like you are looking for less of a reduced load for practice or deer, than you are looking for a lighter bullet load shooting about the same velocity as your standard 130-gr deer load. Is this for targets, or hunting practice, or foxes?

    For 100-gr or 110-gr at 3,000 fps, I would start with H-4895 because it is more forgiving, you can download it further safely, fills the case well, and the velocity scales down linearly from 100% load to 65%.

    100-gr SPT and 42.0 grains of H-4895 (46.0 is MAX )
    100-gr SPT and 50.4 grains of W-760, H-414, RL-19 or 4350

    110-gr SPT and 42.0 grains of H-4895 (48.0 is MAX !! )
    110-gr SPT and 52.5 grains of W-760, H-414, RL-19 or 4350

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