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Thread: 303 British revisited

  1. #21
    Boolit Master
    Join Date
    Sep 2016
    I ran into somewhat the same problem when the light went on in my head that the RCBS dies (3 die set) were sizing down my 7.62x54r cases too much. Rather than mess with sending the dies back to get reworked or going to bushing dies I decided to do something I could control. Measured about twenty once fired cases then neck sized those sane 20 cases. The numbers astounded me. And at the time boxer primed 7.62x54r cases were hard to get. So after I had an average between fired and sized cases all 20. I have some 7/8"x14tpi threaded screw stock. Chucked it in my lathe and first drilled a hole smaller than my cast bullet .3135 then reamer the hole and polished the hole with various graded of silicon carbide paper. What I was looking for was to get enough neck tension without overly sizing the case neck. I ended up with .003 on my first shot. Worked great and the Lyman M die was used to just bell the case mouth. My mini neck die isn't hardened no do I have to lube the case neck. This is not a new idea. Mini or short neck dies used to be made years ago. Then for some reason they just disappeared. Maybe because of a limited market.The way it works it you size the neck in the mini die,then use the M die to bell the case mouth. Once your case is primed and charged seat your bullet and seat the bullet. Course now boxer primed cases are easy to find. I bought 15 20 round boxes of Hansen Cartridge Company 7.62x54r ammo. Since my 1935 Finn model 27 ever sees is all cast bullets I should have enough cases till they shovel the dirt on me. If I were to start with this cartridge today I most likely would be using a bushing die if only to play around with different neck tensions. Frank

  2. #22
    Boolit Master
    Join Date
    Jan 2007
    Brushy Mountains of NC
    I solved the problem with the 7.62 X 54 by modifying a 303 collet die. I ordered an extra collet, shortened it to fit the case and made a larger mandrel to fit my cast boolits. I still have to FL occasionally but it still helps.

  3. #23
    Don’t have an Enfield but shoot .303 brass in my krag sporter. .30-40 was very hard to get a while ago, not as much now but since the headspace is different enough to matter between the two rifles it’s easier to segregate the brass this way. I use my good Krag brass in my actual Krag rifle. Use a .308 sizer die and neck size for both. Seems to work ok. Loading a 160/180gr pointed gc cast bullet sized to .311.

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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