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Thread: Got out the Chrony

  1. #1
    Boolit Master Lead melter's Avatar
    Join Date
    Sep 2007
    Location
    Statesville, North Carolina...too close to Charlotte
    Posts
    516

    Got out the Chrony

    I finally got a chance to chrono some loads I've been working on for a few rifles and figured I'd list the rusults;

    1903-A3 sporterized '06- Ranch Dog TLC-311-165-RN/FP cast of 3:1 lead: lino alloy water quenched, sized .309" with Hornady check and my WWVA lube over 36 grains IMR-3031 and a WLR primer. 2119 fps average speed and zeroed at 80 yards yielded 2" groups.

    Marlin 336 with same bullet over 21 grains H4198 and WLR primer gave an even 1800 fps speed and gave 1 1/2" groups with w Weaver 2 1/2X scope. Zeroed at 50 yards.

    H&R Handi-Rifle with the group buy 380-225-RN/FP of same alloy and lube but with Gator checks sized .380" over 23 grains H4198 and a WLR primer in sized up 30-30 brass ran out at 1516 fps speed with 2" groups at 50 yards with an old Tasco 2 1/2X shotgun scope.

    I think these are ready for deer season!
    "Ignorance is the parent of fear."-Herman Melville

  2. #2
    Boolit Grand Master


    missionary5155's Avatar
    Join Date
    Feb 2007
    Location
    On an old Apache camp area !
    Posts
    7,134
    Good morning
    Those Crony´s are an eye opener.. I get mine out once while up there just to see what reality is with that Pet load. Varies to what others find in thier rifles & handguns. Distance to muzzle also comes into play.
    You can also compare what sizing a boolit .001 diferent or more does with velocity.
    "Behold The Lamb of God that taketh away the sin of the world". John 1:29
    Male Guanaco out in dry lakebed at 10,800 feet south of Arequipa.

  3. #3
    Boolit Buddy
    Join Date
    Jun 2010
    Location
    Colorado
    Posts
    409
    Thats no kidding! I lost 158 fps going to as cast .460 instead if sizing .459. In switching to the cowboy expander (.458) I lost 30 fps.

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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