stoked4AA Posted February 20, 2011 Share Posted February 20, 2011 I would like to make 130 pf load with Tight Group. I am using billy bullets 148 and 160 grain bullets. Ive got a chrono looking for a starting point. Link to comment Share on other sites More sharing options...
stoked4AA Posted February 22, 2011 Author Share Posted February 22, 2011 Got off of the couch and did some quick loading. I will try and be 123-125 power factor on my ICORE load, power factor minimum is 120. To get some base data for this project I loaded round nose moly bullets @ 1.50 OAL 14 rounds of each 135, 158, 160 gr. I used tight group 3.8 grains in every load. Average for 135gr was 888 fps, 158gr was 844 fps, 160gr was 842 fps. ES for all loads was 12-16. Barrel was 6". Link to comment Share on other sites More sharing options...
paul788 Posted February 22, 2011 Share Posted February 22, 2011 I use Tightgroup and 158lrn. Since my K-frame is a 4" I use 4.2 to make 128-130 pf. YMWV. Paul Link to comment Share on other sites More sharing options...
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