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Thread: 200 gr .357 magnum loads

  1. #1
    Boolit Master Texas by God's Avatar
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    200 gr .357 magnum loads

    I'm wanting to try my .358 RCBS 200 rnfpgc boolits in the .357 in a Ruger Blackhawk.
    Any advice from those who've tried it? I looked for a thread but missed it I guess.
    Mine weigh 217grs average.

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  2. #2
    Boolit Master

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    Will it fit? I made up a dummy round of the same and it is too long for my smit and wesson cylinders.

  3. #3
    Boolit Master
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    Quote Originally Posted by Texas by God View Post
    I'm wanting to try my .358 RCBS 200 rnfpgc boolits in the .357 in a Ruger Blackhawk.
    Any advice from those who've tried it? I looked for a thread but missed it I guess.
    Mine weigh 217grs average.

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    I was just thinking of this a few days ago!


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  4. #4
    Boolit Master
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    taper on the interior of some 357 cases may be a problem. i used to load 200 grain RNFP for use in a marlin 94, with 12 gr of H110 or so, IIRC. liked H110 better than WW296. noticed the taper issue in loading 3 60 grain wadcutters in a stack. some cases would take them, and some (winchester IIRC) would bulge with 3 wadcutters. most 38 spcl can handle 3 wadcutters fine. it's a fun load to take to the range and land the occasional group on some other fellow's paper. 3 usually go into a 3" circle at 25 yards over 5 grains of unique.
    Last edited by justashooter; 12-12-2017 at 01:05 PM.

  5. #5
    Boolit Master

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    Load it in a 38 special case. load long so that it will not fit in a 38 sp. I used Herco powder. Work up load.
    There is no difference between communism and socialism, except in the means of achieving the same ultimate end: communism proposes to enslave men by force, socialismóby vote. It is merely the difference between murder and suicide. Ayn Rand

  6. #6
    Boolit Master
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    200 gr lead loads from Hodgdon's manual #23, printed March, 1979. These are all from 7.5" unvented test barrels:

    .38 Special:
    H4227: 8.5 gr., 842 fps, 15,900 CUP
    HS6: 5.0 gr., 824 fps, 15,900 CUP
    HS5: 4.0 gr., 770 fps, 15,400 CUP
    Trap 100: 2.8 gr., 702 fps, 15,000 CUP
    HP38: 3.2 gr., 709 fps, 14,900 CUP

    .357 Magnum:
    H4227: 12.0 gr., 1174 fps, 31,800 CUP
    H110: 11.5 gr., 1212 fps, 31,200 CUP
    HS7: 8.5 gr., 1142 fps, 29,600 CUP
    HS6: 6.8 gr., 1103 fps, 30,600 CUP
    HS5: 6.0 gr., 1014 fps, 30,600 CUP
    Trap 100: 4.2 gr., 829 fps, 28,800 CUP
    HP38: 4.2 gr., 821 fps, 28,100 CUP

  7. #7
    Boolit Master

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    My hunting load for the .357 is 12.5 2400 behind a 200gr. NEI TFP boolit. I tried the RNFP for sillywett and as a already noted had to load it in a 38 special case. BTW - this is another load that I have never been able to recover a boolit from any of the hogs that I've harvested.
    If God didn't want man to eat animals, he wouldn't have made them out of MEAT!

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  8. #8
    Boolit Master Texas by God's Avatar
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    Thanks everyone.

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  9. #9
    Boolit Master

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    here's a page out of an old Hercules hand out:

    Click image for larger version. 

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    watch your over all length.
    ..

  10. #10
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    Which bullet and how long is the bearing surface?
    [The Montana Gianni] Front sight and squeeze

  11. #11
    Boolit Master Texas by God's Avatar
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    MT- It's the RCBS .35 RNFP200gr rifle design. I'll get back to you with that measurement.

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  12. #12
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    Look for a similar sized bearing surface. Loads will be similar. IIRC the 358430 will have more bearing surface as will the 358627. To clear that nose in a revolver you will be deep seating which is never a good idea without firm data.
    [The Montana Gianni] Front sight and squeeze

  13. #13
    Boolit Master Texas by God's Avatar
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    I checked it this morning and the bearing surface is ok but the nose is too long. It can be done with .38 Sp brass but I won't bother with it. Thanks, everyone.

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  14. #14
    Boolit Master
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    I have load some 200grs. in both 38/357 and test them in my Rossi 92 and the 357 mags i had to feed them one at a time. otherwise they would not cycle. the 38spl. did no problem.Wonder if I should eat the 357mag ones deeper.
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  15. #15
    Boolit Master claude's Avatar
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    Wonder if I should eat the 357mag ones deeper.
    I have a NOE 360-180 WFN that it is crucial for feeding to seat it for a coal of no more than 1.60, and it is better at 1.59. My Hartford Rossi will not feed this bullet any longer than that due to the wide meplat. It could well be deeper seating will work for you.

  16. #16
    Boolit Master JMax's Avatar
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    I used a .358 230 gr WC shooting bowling pins at Second Chance loaded in 38 Spl cases. I used 7.5 gr of Blue Dot and was getting a bit over 1000 ft/sec out of my 6" Smiths. Ended up getting hand gun Master Blaster using that bullet and load. A bit tiring for the hands when we would shoot a couple hundred in a day.

  17. #17
    Boolit Master Outpost75's Avatar
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    This is the bullet I use in .38 Special at 1.59" OAL with 3.2 grains of Bullseye

    Attachment 209577Attachment 209578
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  18. #18
    Boolit Master
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    Thank you I will make some dumb rounds and try the OAL that is stated and see if they will feed in my Rossi and if so I will go from there . Thank you again because I will also check in my BH and SP101 too.See how they will seat in them also.I forgot to state it is the NOE mold that I am usen .
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  19. #19
    Boolit Master
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    My rcbs 180gr sil mold boolits usually weigh 190_195gr will feed when loaded to crimp grove in my win 94 but not in a marlin 94 but its great for accuracy .

  20. #20
    Boolit Master
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    I just done some dumb rounds and went to 1.590 and they cycle in the Rossi and also good to go in my BH and SP101 thank you all.I know it is past the crimp grove on the boolit. but that dose not matter to me anyways. I just wanted to have it cycle and go from there after. i still work on the testing part to see what will work in the guns and go from there.
    Life Member of NRA,NTA,DAV ,ITA. Also member of FTA,CBA

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BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
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