ejg223 Posted June 15, 2007 Report Share Posted June 15, 2007 Reloading 223 for the first time. Any advice for the following. 52gr A-max and H335, starting load & max? Sako and Fed brass. Rifle is a 25.5" CZ 1in12, what distance to the lands should I load? What speeds could I expect? Thanks in advance, edi Link to comment Share on other sites More sharing options...
6mmBR Posted June 16, 2007 Report Share Posted June 16, 2007 Here you go Cartridge : .223 Rem. Bullet : .224, 52, Hornady A-MAX 22492 Cartridge O.A.L. L6: 2.260 inch or 57.40 mm Barrel Length : 25.5 inch or 647.7 mm Powder : Hodgdon H335 Predicted data by increasing and decreasing the given charge, incremented in steps of 2.0% of nominal charge. CAUTION: Figures exceed maximum and minimum recommended loads ! Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time % % Grains fps ft.lbs psi psi % ms -20.0 77 20.00 2601 781 24602 4853 83.4 1.391 -18.0 79 20.50 2665 820 26220 5020 84.9 1.356 -16.0 81 21.00 2730 861 27972 5184 86.3 1.321 -14.0 82 21.50 2795 902 29837 5344 87.7 1.287 -12.0 84 22.00 2860 944 31835 5499 89.0 1.254 -10.0 86 22.50 2925 988 33975 5649 90.3 1.222 -08.0 88 23.00 2990 1033 36272 5794 91.4 1.190 -06.0 90 23.50 3056 1078 38738 5932 92.6 1.157 -04.0 92 24.00 3121 1125 41384 6063 93.6 1.124 -02.0 94 24.50 3187 1173 44235 6186 94.6 1.092 +00.0 96 25.00 3252 1221 47301 6302 95.5 1.061 +02.0 98 25.50 3317 1271 50609 6408 96.3 1.032 +04.0 100 26.00 3383 1321 54176 6505 97.1 1.003 ! Near Maximum ! +06.0 102 26.50 3448 1373 58035 6593 97.8 0.975 ! Near Maximum ! +08.0 104 27.00 3513 1425 62211 6670 98.4 0.948 !DANGEROUS LOAD-DO NOT USE! +10.0 105 27.50 3578 1478 66737 6736 98.8 0.922 !DANGEROUS LOAD-DO NOT USE! Start seating at 10 thou off lands. Powder charges show a maximum at around 26.5 grains always start low and work up. as these predictions are for an estimated seating depth yours will vary and if deeper can push pressures rapidly. Cheers Dave Link to comment Share on other sites More sharing options...
ejg223 Posted June 16, 2007 Author Report Share Posted June 16, 2007 Thanks Dave, perfect! I'll measure my chamber first. 10 thou thats 0.254mm right? I made a little tool to measure seating depth and was astonished how much factory ammo varies. Sako 55gr sp from one box was up to 0.5mm!!! I was always worried if my barrel (1/12) stabilises a 55gr at longer range say 300yds. At 100 she would group 1/4-1/2" but over 250 i had problems hitting consistantly. Never had a chance to try it on paper at that range. We don't have any ranges in our area over 100yds, so testing is always a bit awkward. Learning to load will turn out to be the easy bit, learning to shoot straight another matter. edi Link to comment Share on other sites More sharing options...
6mmBR Posted June 16, 2007 Report Share Posted June 16, 2007 Glad to help, by the way a 12 twist will stabalise up to 60 grains. Cheers dave Link to comment Share on other sites More sharing options...
ejg223 Posted June 16, 2007 Author Report Share Posted June 16, 2007 Hi Dave, had a go, 25gr h335 with the 52 amax. COL was at the max 54,70 and if my measurement was half ok it would have still been 0.50 from the lands 20thou. The lands seemed to feed in, so the measuring was a bit more tricky. I stayed on the safe side. All heads were seated with 0.03mm max difference. Which i thought was great compared to factory loads. 4shot group, pulled the second shot a bit. Damn wine last night. Wasn't too bad for the first time loading, ever. Thanks again, edi Link to comment Share on other sites More sharing options...
ejg223 Posted June 17, 2007 Author Report Share Posted June 17, 2007 Managed to get out yesterday eve and try the new reloads. One fox at 220 yds quartering away from me nice smack. Second one was moving at a fast trott and wouldn't stop at a whistle, hit him a bit far back at around 240. He went into cover but came out again and i could get a good shot. Pity I couldn't retrieve cause the valley was very tough to cross. We keep the fox shooting quiet on our club lands, some farmers belong to the huntsmen.. Very bad photo over the valley it was after 10 and phone camera. Link to comment Share on other sites More sharing options...
6mmBR Posted June 17, 2007 Report Share Posted June 17, 2007 Looks like an excellent result there. Its great when you hit on an accurate load like that so quickly. Glad I was of help. Cheers Dave Link to comment Share on other sites More sharing options...
ejg223 Posted June 17, 2007 Author Report Share Posted June 17, 2007 rather stupid and lucky.... This rifle has produced nice groups with factory ammo too, just not all the time this group was 55gr SP Sako. I just don't have a lot of faith at long ranges. Dave you're not off the hook yet, next is 308... Thanks edi Link to comment Share on other sites More sharing options...
6mmBR Posted June 17, 2007 Report Share Posted June 17, 2007 No worries mate, fireaway Dave Link to comment Share on other sites More sharing options...
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