TexasViking
Member
HBWCs like SPEERs and Hornady's that you see in their handload data are swaged and soft. When pushed too fast, leading can occur and there is the danger of blowing the center of the bullet out.
In post #13 Forrest r loaded his 220 gr. HBWC as an HP cast at 8-9 BHN which is barely harder than swaged and did not mention any leading issues.
I think your 215 gr. HBWCs cast at 11 BHN give you some flexibility depending in how you want to load them and their intended purpose.
Generally, .38 HBWCs were loaded light for Bullseye competition and as DWalt mentioned, cutting clean holes that helped with scoring targets but also for accuracy, and certainly the lower recoil is part of that with them loaded around 800 FPS or less and loaded with faster burning powder where No 2 and Titegroup would certainly work with the small charges being less sensitive to powder positioning in the case.
Loaded in reverse as a HP at around 1000 FPS would make a pretty effective defense or small game load and may be capable of slightly higher velocity. There I think you'll find the slightly slower burners a bit better, but data for AA No 5 and True Blue is difficult to find.
Earlier I mentioned using START charges for 240 gr. lead bullets because of the amount of the 215 gr. HBWC bullet that will be seated in the case. For that, SPEER has used Herco for their 240 gr. Swaged SWC in .44 Special and I would feel comfortable doing that with AA No 5 and True Blue that I'd likely use because of its pressure stability and uniformity. A chronograph will certainly help and make just a few loads, even just six to start, until you reach the targeted velocity. Don't see that going much beyond 1000 FPS, maybe 1100, but I would certainly be on the lookout for any issues of leading.
In post #13 Forrest r loaded his 220 gr. HBWC as an HP cast at 8-9 BHN which is barely harder than swaged and did not mention any leading issues.
I think your 215 gr. HBWCs cast at 11 BHN give you some flexibility depending in how you want to load them and their intended purpose.
Generally, .38 HBWCs were loaded light for Bullseye competition and as DWalt mentioned, cutting clean holes that helped with scoring targets but also for accuracy, and certainly the lower recoil is part of that with them loaded around 800 FPS or less and loaded with faster burning powder where No 2 and Titegroup would certainly work with the small charges being less sensitive to powder positioning in the case.
Loaded in reverse as a HP at around 1000 FPS would make a pretty effective defense or small game load and may be capable of slightly higher velocity. There I think you'll find the slightly slower burners a bit better, but data for AA No 5 and True Blue is difficult to find.
Earlier I mentioned using START charges for 240 gr. lead bullets because of the amount of the 215 gr. HBWC bullet that will be seated in the case. For that, SPEER has used Herco for their 240 gr. Swaged SWC in .44 Special and I would feel comfortable doing that with AA No 5 and True Blue that I'd likely use because of its pressure stability and uniformity. A chronograph will certainly help and make just a few loads, even just six to start, until you reach the targeted velocity. Don't see that going much beyond 1000 FPS, maybe 1100, but I would certainly be on the lookout for any issues of leading.
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