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Thread: 480 Ruger loads...

  1. #1
    Member Fiddleback's Avatar
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    Default 480 Ruger loads...

    I had several boxes of CP 375 grain LFNGC given to me the other day, but, since CP doesn't provide data in the boxes anymore; I need some starting data. I e-mailed Mike Rintoul at CP for data but have not received a response. Does anyone here load this particular bullet? The only data a could dredge up uses W-296 and I don't have that on the island.

  2. #2

    Default 480 loads

    You could go to www.beartoothbullets.com and view the loads in their loadswap section or go to www.hodgdon.com and check out a lot of 480 Ruger loads for jacketed and cast bullets. You can use the same loadings, if you start with beginning loads, for a 370 grain cast bullet.

  3. #3
    Moderator Paul H's Avatar
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    What powders do you have available? You'll find for top velocities H-110, W-296 and Lil-gun are top powders. If you can live with a mere 1100 fps 2400 is a suitable powder, though I don't believe you'll find any published data for its use.

    I can't in any way recomend this approach, but when I started loading for the 480 and there was little to no published data, I used 300 gr data for the 44 mag for 400 gr bullets in the 480. It ended being within a grain and 100 fps of the 44 mag. Again, not recomended at all, but it is one way to approach loading for the round.

    There is plenty of 400 gr cast data for the 480, 375 gr bullets will take a bit more powder and achieve a bit more velocity. I would not start with minimum H-110 or W-296 400 gr loads as those powders need a minimum charge to work safely.

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    Member Fiddleback's Avatar
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    Paul, I have H-110, Lil Gun, H4227, & Tite Group that I can use...but, you hit the nail on the head regarding the need for a minimum charge of H-110 and W296, Lil gun too! Since these powders are what I have on hand, I wanted to put out the feelers and troll for some data to keep it safe. I'd like to use W-296, but I can't find anyone on the island that has it (or better said, willing to part with some) and it will be a couple more months before I make my biannual ferry run to the mainland.
    I have seen some data using H4227 and Tite group for certain cast bullets...I may start experiment with these since they are less temperamental than the heavier magnum powders you mentioned. Thanks for the reply and if you stumble across any other data, please give me a shout.

  5. #5

    Default 480 loads

    I copied these loads right off the Hodgdon website. For a 375 grain CP bullet, starting with the recommended starting loads is no problem. If you are concerned about the 5 grains difference in weight, start 1/2 a grain lower. H110 rubs shoulders with WW296 in loadings, as you can see. I would never drop the starting loads given as H110 and 296 are meant to be used here for full loads.


    370 GR. CPB LFP Hodgdon H4227 .475" 1.640" 22.5 1248 32,800 PSI 26.0C 1427 45,900 PSI
    370 GR. CPB LFP Winchester 296 .475" 1.640" 24.0 1348 33,400 PSI 26.0 1454 41,500 PSI
    370 GR. CPB LFP Hodgdon H110 .475" 1.640" 24.0 1348 33,400 PSI 26.0 1454 41,500 PSI
    370 GR. CPB LFP Hodgdon Lil'Gun .475" 1.640" 22.0 1354 34,300 PSI 26.0 1539 46,800 PSI
    370 GR. CPB LFP Hodgdon Longshot .475" 1.640" 12.0 1162 36,300 PSI 13.8 1272 45,800 PSI
    370 GR. CPB LFP IMR Trail Boss .475" 1.640" 4.5 597 16,000 PSI 5.7 689 20,900 PSI
    370 GR. CPB LFP Hodgdon Titegroup .475" 1.640" 9.0 1047 36,300 PSI 10.3 1137 45,800 PSI

  6. #6
    Member Fiddleback's Avatar
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    Thanks Mauserboy, I appreciate the assistance! Will post the results.

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    Moderator Paul H's Avatar
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    Don't fret not being able to get W-296, I've personally never used it. I've run several pounds of H-110 through my 480, I've never found the need to try another powder for full patch loads.

  8. #8
    Member Fiddleback's Avatar
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    Yep, anything winchester pertaining to hand loading is hard to find on the island....plenty of H-110 and Lil Gun though! WOO HOO!

  9. #9
    Member jdb3's Avatar
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    You will find that H-110 and W296 are the same powder with different labels. I really like Lilgun for the 480, you will get a little more velocity with less pressure. Jim

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