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Thread: 480 Ruger and my Mountainmolds custom 435gr with Unique

  1. #1
    Boolit Bub Rug480's Avatar
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    480 Ruger and my Mountainmolds custom 435gr with Unique

    Hey all,

    I'll be doing some load testing with my WLN 435gr with H110, CCI350, and home made lube 21-23gr H110

    My question however is with Unique and how to determine a safe starting load. I have Trailboss, that's an easy one to figure out, but never really played with Unique.

    my boolit will seat .47-.5 inside the case, I had some Lee 325gr reloads loaded with 9gr of unique, would 10-11 be in the safe range with CCI300? Does Unique require a filler? Odds are the boolit is too heavy for Unique but don't know until I try.
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    Last edited by Rug480; 08-30-2018 at 01:40 PM.
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  2. #2
    Boolit Master mtnman31's Avatar
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    Sorry, can't help you with Unique. I've only really used W-296 and H-110 in the 480 Ruger. They just work so I haven't played with anything else.

    Those are some good looking bullets. 480 Ruger is my favorite revolver round.

  3. #3
    Boolit Buddy
    Chad5005's Avatar
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    as mtnman31 said those are some good looking boolits,i just talked to mp this morning about there 385 hp mold for my 480,i think your bullet will be to heavy for unique,im gonna use h110 for mine

  4. #4
    Boolit Grand Master

    DougGuy's Avatar
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    I won't even put 10.0gr of Unique in a 45 Colt! At that charge weight, it can become spiky and unpredictable. Some folks top out at 10.0gr Unique in the 44 Mag under a 240gr boolit.

    If you can't find published data for Unique for a given caliber, it is USUALLY because it isn't recommended in that caliber or for that specific boolit weight.

    I found this, let me pass it on here fwiw:

    Quote Originally Posted by BABore View Post
    For a 400 gr cast boolit with GC, Quick Load lists the following;

    480 Ruger Pmax pressure: 47,862 psi

    400 gr GC boolit with a seat depth of 0.525 inches (QL SAAMI OAL)
    10.0 grs Unique: 36,754 psi
    13.0 grs Unique: 64,273 psi

    400 gr GC boolit with a seat depth of 0.435 inches (my design)
    10.0 grs Unique: 28,966 psi
    13.0 grs Unique: 48,913 psi

    Hopefully you were using a much lighter boolit. Here's a Lee 476, 325 gr GC;

    Lee 325 gr GC with a seat depth of 0.447
    10.0 grs Unique: 25,892 psi
    13.0 grs Unique: 44,460 psi

    Even the light weight Lee boolit is nearing max with 13 grains.

    The SRH can certainly handle being a bit above SAAMI pressure, but I wouldn't be pushing it with a fast powder like Unique. Your best served with a slower powder like WW296 or H110 if you want to run them hard. Unique doesn't measure all that well to be pushing on it. 8.5 to 10.0 grains is a nice midrange load.

    You also have to watch the brass used. New Hornady brass is about dead soft. It will stick even moderate loads when new. Once work hardened a bit by 3-4 firings, it comes around to what SL brass is new.
    Got a .22 .30 .32 .357 .38 .40 .41 .44 .45 .480 or .500 S&W cylinder that needs throat reaming? 9mm, 10mm/40S&W, 45 ACP pistol barrel that won't "plunk" your handloads? Shoot me a PM! Also on Facebook: https://www.facebook.com/Cylinderhone-756429174391912/

  5. #5
    Boolit Buddy
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    Unique is "unique"...my favorite powder and have used it in everything. No it doesn't need a filler.

    I had a 6" FA 83 in .475 Linebough. Using Montana Bullet Company Bullets:

    330 grain LBT: 12.0 Unique/1060 fps

    400 grain LBT: 12.0 Unique/1042 fps

    420 grain LBT: 12.0 Unique/1087 fps

    A 9-10 grains starting load in a .480 with a 435 should work fine...

    Bob

  6. #6
    Boolit Grand Master

    Beagle333's Avatar
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    Those are some good looking whompers. I'd imagine if you got them up to even 850-900fps, it'd be bad news for whatever was trying to slow em down.
    Have fun!
    KE4GWE - - - - - - Colt 1860, it just feels right.

  7. #7
    Boolit Master

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    It's not a .480 but I use 10 gains of Unique and a 440 Grain Lee in a 500 S&W (Lee reloading 1st edition) Good practice load. I'm with Doug Guy on over ten grains Unique. There are better powders for the purpose. Just my opinion, others will differ.
    Before you embark on a journey of revenge, dig two graves.

    ― Confucius

  8. #8
    Boolit Bub Rug480's Avatar
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    Appreciate the feedback, looks like I might get me another mold for plinking. Maybe a 330gr Keith for fun, save the 435 for h110 and 2400
    A cigar makes a bad day good, a good day great.

  9. #9
    Boolit Master
    Tom W.'s Avatar
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    I know it depletes your lead supply pretty quickly, at an ounce per boolit......BTDT
    Tom
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    Did I ever mention that I hate to trim brass?

  10. #10
    Boolit Master dougader's Avatar
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    I've loaded 8, 9 and 10 grains W231 in 480 Ruger with a 370 grain RNFP boolit based on some Taffin data. This link also shows Unqiue data. I'm thinking I'd start with 8 grains Unique with your 435 and then ladder up 1/2 grain at a time to see what your accuracy is like... keeping in mind how fast pressure can spike with relatively fast powders and heavy bullets.

    http://www.handloads.com/loaddata/ta...Powder&Source=

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Abbreviations used in Reloading

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
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check