villreinjegeren Posted July 24, 2008 Share Posted July 24, 2008 Fikk tak i noen ladedata på AR, etter et spørsmål fra meg på å lade 350 grs i 375H&H mag, her er resultatet: 350g Woodleigh PP 68g H4350 3.60" OAL (.100 freebore) 2260 fps 1.25" 3 shot groups 100 yards 350g Woodleigh PP 70g H4350 3.60" OAL (.100 freebore) 2310 fps 0.75" 3 shot groups 100 yards 350g Woodleigh PP 72g H4350 3.60" OAL (.100 freebore) 2360 fps 0.65" 3 shot groups 100 yards All of these loads fed and extracted flawlessly, recoil at 72g H4350 was stouter than 300g factory loads but still very mild. 72g of H4350 will be my load for the 350g Woodleigh PPs, it may be too hot for your rifle so start up slowly. Note: 72g of H4350 is MAX in my reloading manuals and proved so in my testing! I shot two more groups at 73, and 74g and this is NOT RECOMMENDED. Velocities exceeded 2500 fps, recoil got increasingly stout, extraction began to get a little sticky and the beginning of extractor marks appeared on the cases. I threw those cases away. 250g Swift A-Frame 69g IMR 4320 3.54" OAL (.50 freebore) 2710 fps 1.10" 3 shot groups 100 yards 250g Swift A-Frame 71g IMR 4320 3.54" OAL (.50 freebore) 2860 fps 0.90" 3 shot groups 100 yards 250g Swift A-Frame 73g IMR 4320 3.54" OAL (.50 freebore) 2910 fps 0.50" 3 shot groups 100 yards All of these loads fed and extracted flawlessly. Recoil was very mild compared with 300g factory loads. The last 250g Swift A-Frame load with 73g IMR 4320 which is the stated MAX in the Swift reloading manual will be my Colorado elk, deer, bear hunting load. IMR 4320 ligger mellom VVH 135 og N-140 eller mellom 203B og URP fra Norma Fikk også ett ladetips med Hodgon 4350: If you can get Hodgdon h4350 (ADI, AR2209) powder, we have had good results with 73grns at 2350fps but you should start with less powder for starters. Dette kruttet ligger likt med N-150 og Norma URP. Quote Link to comment Share on other sites More sharing options...
Tron Posted July 24, 2008 Share Posted July 24, 2008 Fra min eget arkiv, for de som ikke vil "gå over bekken etter vann" : Kaliber: .375 Projektil - fabrikat: Woodleigh type: Weldcore vekt: 350 grain Patr.l/f.friflukt : 92mm Hylse/tennh. : Norma / Fed215 Krutt - fabr./type : Norma 203B ladevekt : 66,5 grain (5,6cc) Hastighet : 717 ms / 2350 fps Kommentarer : Maks/nær maks, presisjon 32mm/100m (snitt av tre treskudds serier) NB: Kun skutt i norske sommertemperaturer! Tron Quote Link to comment Share on other sites More sharing options...
350RM Posted September 4, 2010 Share Posted September 4, 2010 Er det noen som har fått testet med f.eks Vit. N550 bak denne Woodleigh Weldcore 350 grain eller kan QL'e den? Quote Link to comment Share on other sites More sharing options...
Arrowmaker Posted September 4, 2010 Share Posted September 4, 2010 QL sier 3826 bar og 720m/s med 69 gr N550. 71gr gir 4178 bar og 738 m/s. COL er 91,44mm og løpslengde 24". Max trykk for patronen er som du vet 4300 bar. PS. Tar ikke ansvar for feil eller mangler Quote Link to comment Share on other sites More sharing options...
350RM Posted September 4, 2010 Share Posted September 4, 2010 Takk for hurtig svar, får ta en titt på handgranatene jr. driver å lager seg, tror han har planer om få den skikkelig flatt skytende. 4300 bar nås vel ved 71,5grs det da? Quote Link to comment Share on other sites More sharing options...
Arrowmaker Posted September 4, 2010 Share Posted September 4, 2010 71,5 gr gir 4271 bar og 743m/s, 72gr gir 4366 bar og 747m/s. Teoretisk beregnet av QL Quote Link to comment Share on other sites More sharing options...
350RM Posted September 4, 2010 Share Posted September 4, 2010 Takker, en lille justering av ladningen er nok på sin plass. Ellers blir det ny vri på ordtaket: Eple eksploderer ikke så langt fra stammen. Quote Link to comment Share on other sites More sharing options...
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