CC712400 Posted November 21, 2013 Share Posted November 21, 2013 Sitting on a good pile of lightweight (100gr) frangible bullets (.355) and about to start loading for 38Super/comp, just looking around to see what experience people have with loading lightweight projectiles in relatively "big" cases. What is the fastest burning powder people here are using for 38Super/comp, how about lightest bullets? Link to comment Share on other sites More sharing options...
B_Seehawer Posted November 21, 2013 Share Posted November 21, 2013 What powder do you have in mind? Link to comment Share on other sites More sharing options...
Will Abrahams Posted November 21, 2013 Share Posted November 21, 2013 (edited) Are you trying to work a compensator? Major or minor PF? Edited November 21, 2013 by Will Abrahams Link to comment Share on other sites More sharing options...
CC712400 Posted November 21, 2013 Author Share Posted November 21, 2013 I have a large quantity of 100gr bullets and Bullseye powder. Trying to see if anyone has successfully used very light weights with relatively fast powders. Compensated open gun, looking for major PF. Link to comment Share on other sites More sharing options...
Justsomeguy Posted November 21, 2013 Share Posted November 21, 2013 Bullseye for major? Don't do that! Besides, it won't work the comp. You're trying to reinvent the wheel without a hub. Link to comment Share on other sites More sharing options...
Service Desk Posted November 21, 2013 Share Posted November 21, 2013 Bullseye and 100 grainers are not going to get you to Major. Try 4.0 grains of BE behind them for a soft shooting steel load. Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted November 21, 2013 Share Posted November 21, 2013 Might be tough getting such a light bullet to 1750 fps with anything, but I'd guess HS6 or WAC might make it. I'd work up very slowly with a chrono. Link to comment Share on other sites More sharing options...
kneelingatlas Posted November 21, 2013 Share Posted November 21, 2013 (edited) I've made 165 PF with 100gr bullets with both HS6 and SP2 (9X19), unfortunately USPSA rules don't allow you to declare Major PF with a bullet lighter than 112gr. That being said, my 100gr Open loads were awesome! Regardless of PF fast powders will render you comp useless, I've tried fast powders with and without the comp: literally no difference in muzzle flip. Edited November 21, 2013 by kneelingatlas Link to comment Share on other sites More sharing options...
kneelingatlas Posted November 21, 2013 Share Posted November 21, 2013 Try to get your hands on some 3N38, SP2, HS6, Autocomp or Silhouette; with 9-11 grains those 100 grainers will shoot flat as hell! That is if you can get them to cycle; they're really short so in my 9mm I couldn't load longer than 1.077". Link to comment Share on other sites More sharing options...
gm iprod Posted November 21, 2013 Share Posted November 21, 2013 (edited) The big problem is the 100gr Frangible projectiles are the same physical size as 125gr JHP or Lead. Therefore have a long bearing surface and will occupy the same amount of case space. I agree with Service Desk, stick to light loads. Hodgdon suggest using data for a bullet 25-30% heavier as a start point (read that on AR15.com in a similar thread) that makes sense to me. Real Fast Burners like BE will just suddenly go nuts for pressure. No warning signs with lightweight bullets, just fine, fine, bang. Edited November 21, 2013 by gm iprod Link to comment Share on other sites More sharing options...
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