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Results 1 to 6 of 6

Thread: one unique case-357 >360 throats

  1. #1
    Boolit Buddy
    Join Date
    Sep 2006
    Location
    ES of MD
    Posts
    58

    one unique case-357 >360 throats

    I was thinking about this the other day and was just wondering if anyone can put it all into good perspective. Used to be I could remember all the good details so I never wrote any thing down. Now that I have the sense to write things down I cant remember any thing to write down. Probably about 30 years ago I bought a Taurus 66- 357 mag SS 4". Nice well balanced nice handling handgun. Imitation S&W 66. But less pricey. Due to the QC or the engineering Dept the throats were on the order of 0.360, even a bit +. Accuracy was on the order of a blunderbus loaded with 6 -3/0 buckshot . Jacketed or cast 6-10" at 20 yds. The biggest cast bullet I had was 0.359"
    I was messing with firelapping at the time and wondered about using a polyethelene wad as an over powder wad, but I couldnt find any combination of sheet or"stuff" that would work. Just no change. Finally using a moderate charge of Unique, a Lyman 358477(?) lubed with home made lube-cookie cutter stuff. Alloy was WW with enough 50-50 solder to fill the mold groovesI decided to fill the excess space in the case with some "Grex" analogue in an effort to keep a wad in place. This had an astonishing effect on the accuracy of the revolver. Test firing at 35yds , Thats where the backstop stump happened to be, started producing grops on the order of 1-1 1/2". Let me mention that was back in the days when I could see. Worked with this combination and found that I didnt need the wad on the bullet base. Firing with a Lee rest often gave groups under one inch at 35 yds. With the rest, not much bigger with sand bags. All I was doing at this point was dumping the powder charge and filling the dead space with a lightly compressed volume of the powdered Grex. The Grex was measured out with a Lee dipper to keep the volume and compression consistent. The load was a moderate one so the reduction of case volume didnt give excess pressures. I dont remember if I had chronographed the load but the recoil level was not excessive- so a WASG gives 1100+/-. Trying the analogue with jacketed bullets gave a lot of improvement but nowhere near the improvement as with the cast SWC. It was fun to shoot it because it was so fantastically accurate, in such a nice balanced gun, but the tedium of loading th Grex which had to be hand dipped since it would not run thru a powder measure got to be as much fun as I could stand. So I traded it for a Ruger SS-SS 4" that shot anything well without all the special attention. Never to the consistant <1" at 35 yds, but good enough.
    Just put this in for anyone's amusement or thoughts on the matter. I havent tried to duplicate this loading with any other gun . I do have Redhawk 45C that I dont think shoots as well as I think it should. The sighting systems(eyes) are not working as well as it used to so results may be as good as before. I may have to try one of the cheater sighting systems.

  2. #2
    Boolit Master Outpost75's Avatar
    Join Date
    May 2013
    Location
    over the hill, out in the woods and far away
    Posts
    4,719
    I have a Ruger Vaquero 4-5/8" .357 Mag. which has .360 cylinder throats.

    I just got Tom at Accurate to cut a mold which fit it and it now shoots like a rifle.
    The ENEMY is listening.
    HE wants to know what YOU know.
    Keep it to yourself.

  3. #3
    Boolit Master
    Join Date
    Oct 2011
    Location
    CSRA of Ga/SC
    Posts
    245
    Try a card wad over a moderate charge of powder. l used this technique in my S&W 460PC to shoot 45LC loads in those huge 460 cases. The accuracy improvement was fantastic too. Shooting 8gr of Unique/250gr swc cast boolit in an 84oz handgun had the recoil of a BB pistol. Cheaper than GREX too, which l think read somewhere its no longer available.

  4. #4
    Boolit Buddy
    Join Date
    Sep 2006
    Location
    ES of MD
    Posts
    58
    No, I traded that thing off a long time ago. That worked.

  5. #5
    Boolit Master murf205's Avatar
    Join Date
    Sep 2011
    Location
    middle of Alabama
    Posts
    282
    Quote Originally Posted by sw282 View Post
    Try a card wad over a moderate charge of powder. l used this technique in my S&W 460PC to shoot 45LC loads in those huge 460 cases. The accuracy improvement was fantastic too. Shooting 8gr of Unique/250gr swc cast boolit in an 84oz handgun had the recoil of a BB pistol. Cheaper than GREX too, which l think read somewhere its no longer available.
    I have been advised by some people with a LOT of experience that the card wad is a great way to ring a chamber. I have seen a Ruger #1 45/70 with a ringed chamber due to a card wad over the powder charge. The practice does reduce extreme velocity spreads but IMHO it is not worth the risk to your chamber. YMMV
    IT AINT what ya shoot--its how ya shoot it

  6. #6
    Boolit Master
    winelover's Avatar
    Join Date
    Apr 2009
    Location
    North Central Arkansas
    Posts
    1,432
    Most all of my revolvers have large uniform throats, never has been a issue with accuracy. My 70's issue Python's are .360 and extremely accurate with J-words and cast, even when sized .357 diameter, at moderate handgun ranges. I did, however, load gas checked bullets with these smaller diameters.

    Winelover

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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