Ruger No. 1 "Kudu" - .300H&H

Discussion in 'Up To .375' started by PHOENIX PHIL, Jul 1, 2013.

  1. tarbe

    tarbe BRONZE SUPPORTER AH Fanatic

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    It does seem to shoot the 180gr Nosler ok, even with the short throat.

    Group is from 100 meters off the picnic bench.
     

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  2. sestoppelman

    sestoppelman SILVER SUPPORTER AH Legend

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    What weight are you talking about there? You might try other brands, the Hornady does have a bit of step where the ogive changes to the spire and of course the cannelure is just a crimp groove which is not at all necessary in a single shot.
     
  3. tarbe

    tarbe BRONZE SUPPORTER AH Fanatic

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    I mention the cannelure only as a reference point. Of the thousands of rounds I have loaded for single shot rifles, I have never used a crimp!

    Ballistic tips and partitions have to be seated deeply too.
     
  4. sestoppelman

    sestoppelman SILVER SUPPORTER AH Legend

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    Sounds like you may indeed need a throat job. Will it not even allow normal max OAL?
     
  5. tarbe

    tarbe BRONZE SUPPORTER AH Fanatic

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    SAAMI max OAL is 3.60". The 220gr Nosler Partition hits the lands at 3.57".

    Of course, with the No 1, I want to take advantage of the lack of magazine length restrictions and seat the bullets out to increase effective case capacity (like I do with other No 1 rifles). I had hoped to seat the 220 Partition to about 3.75" OAL. This puts the base of the bullet about 0.1" below the base of the neck.

    I also want this Kudo optimized with the heavier bullets, as I have a .308 if I am shooting stuff that the lighter bullets make sense for.

    My intention is to use this Kudu on a 2015 PG hunt, with Eland as the largest animal...so no light bullets on this hunt! If I go copper and lead, 200gr would be the lightest. If I go Barnes TTSX, 180gr would be the lightest (and we all know how long the TTSX bullets are!).

    Thanks for the feedback sir!


    Tim
     
  6. sestoppelman

    sestoppelman SILVER SUPPORTER AH Legend

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    Yes that is the beauty of the No.1, I have 2 now but have owned several others, great rifles. Ruger does have a very fine repair policy, if you wanted to send it back to get more throat. Or any competent smith could open it as well, maybe even for less if you didn't have to ship the thing to them. It really ought to accept any round at max OAL and a bit more really. Keep us posted.
     
  7. tarbe

    tarbe BRONZE SUPPORTER AH Fanatic

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    This is my last hijack of this thread...I promise! ;)

    Corresponded with a local benchrest gunsmith today .

    He is going to lengthen the throat to fit a dummy cartridge I have prepared with the 220gr Nosler Partition seated to 3.77". This will allow me to seat the heavy Partition a few thousandths off the lands and still keep the base of the bullet just barely below the base of the neck.

    I will then be able to get true 300 magnum velocity with acceptable pressures. My goal is to find a good shooting load that will start the 220 off at about 2,750 fps mv. IMR 4831, H4831 and IMR 7828 will be my powders of choice, and if I can find some Reloader 22 and/or 25 I will try those too.

    The work will cost me $60 and the smith is only 15 miles from my house.

    The resulting impact velocities should give me good, wide wound channels while still proving plenty of penetration for the larger PG.
     
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  8. sestoppelman

    sestoppelman SILVER SUPPORTER AH Legend

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    PERFECT!!:cool:
     
  9. PHOENIX PHIL

    PHOENIX PHIL AH Legend

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    tarbe,

    Sorry I've been at SCI this past week and had little time to spend here on AH. But my experience is the same as yours from what I can tell. 180gr Nosler Partitions had to be seated a bit deeper for the action to close properly.
     
  10. tarbe

    tarbe BRONZE SUPPORTER AH Fanatic

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    I chronographed some loads out of the long-throat Kudu today.

    My hottest load with the 220gr Partition hit 2,814 feet per second. This is with a not-to-be-disclosed amount of IMR 7828 SSC (above book max due to the long throat).

    Based on case expansion I could probably go a little higher if I wanted to...but I am thinking now I probably won't bother. I will tweak this load up and down a little to find a charge that will keep my 100 yard groups around an inch and then I will be happy.

    Once the rifle and load are dialed-in, it is time to work on the nut behind the rifle!

    Can't wait to take this baby to RSA. Nothing like taking a kudu with the kudu! :cool:

    Tim
     
  11. sestoppelman

    sestoppelman SILVER SUPPORTER AH Legend

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    At nearly 3900 ft/lbs of energy, you are nearing Weatherby territory! Good stuff!
     
  12. tarbe

    tarbe BRONZE SUPPORTER AH Fanatic

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    The old girl still has legs!

    I hope I can manage to keep a couple of those heavy partitions inside an animal....maybe the Eland or Blue Wildebeest? I would dearly love to have a few to weigh/measure. The analytical side of me loves that stuff.
     
  13. PHOENIX PHIL

    PHOENIX PHIL AH Legend

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    Holy smokes that's hot, what's the COAL for those loads?
     
  14. enysse

    enysse AH Ambassador

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    Sounds like 300 H&H Ultra Mag....lol!
     
  15. tarbe

    tarbe BRONZE SUPPORTER AH Fanatic

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    3.8 inches
     
  16. tarbe

    tarbe BRONZE SUPPORTER AH Fanatic

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    Here is a reference photo.

    L to R: 22 LR, 300 H&H 220gr Partition for long-throated Kudu (3.8" OAL), 300 H&H with 180gr Hornady seated to lands of Kudu as produced by Ruger (3.58" OAL), 308 Win with 165gr Ballistic Tip.

    The base of the 220gr Partition is just a gnat's eyelash below the bottom of the neck.
     

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