• 7.7 x 58 Arisaka RSS Feed

    Published on 10-24-2014 05:51 PM  Number of Views: 4878 


     GUN TYPE   

    7.7 x 58 Arisaka

     LEAD TYPE   paper patched,jacket
     CALIBER TYPE   7.7x58 jap,made into scout rifle
     RATING   8
     LEAD SIZE   150
     POWDER TYPE   imr7383
     POWDER AMOUNT   from 40grs to44grs
     BRASS   Mil reformed,and fire formed with 10 gr of unique and 175gr cast bullet,first
     BARREL LENGTH   21.5
     F.P.S   about 2050 to 2300fps
     GROUP SIZE   5 shots 3/4 to11/4 at 50yds
     GUN DETAILS   early rifle#52432,when I got it was a rusty mess,but after cleaning up,the chromeed bore was great shape,but way over size,I cut back barrel to 21.5 in,mounted a red dot scope,still the bolt cleared very well,did not have to bend it,used original stock,which was very chewed up,filled in chips and holes,black spray paint works wonders,piller bed it,and free floated barrel.gun wt is 6-3/4 lbs complete.
     OTHER DESCRIPTION  useed Lc69 brass,had old reforming and triming die,use first,then full sized,my neck dia. was.345 this rifle,so when .318 bullet seated,it was .347,reamed inside necks,so that finished dia was .342 to.343,makes easy chambering,my rifle,after firing forming with 10grs of unique,head dia. was.473 to.474,to keep case centered in chamber a thin line of tape was wraped around edge of head,overall dia at back about .478with tape, full loads,are about .4795 when fired.cases were .464 orignaly
     SUBMITTED ON   06 Mar 2012
     SUBMITTED BY   good shots only

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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        

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