Infidel_319
Member
Well, got to the range today. Using the data on Ramshot's website I loaded 10 rounds with 5.7 grains, 10 with 6.0 grains, and 10 with 6.3 grains. Out of those loads it liked the 6.0 grain load best. Testing was done inside with a so-so rest @ 7 yards. Nothing to write home about and I would guess these standard loads are in the 8-900 fps range out of my 640 Pro, I need to get out with my chronograph.
Now the good news. Being the 640 Pro I have is a .357 magnum, I loaded 10 rounds with 7 grains (THIS IS OVER MAX FOR .38 SPECIAL) and with group #1 had 4 shots in one hole and pulled one a little to the right, the other 5 shot group was one ragged hole. The bullet used in this testing was Sierra 125 grain JSP with Fiocci small Pistol Primers.
This powder was very clean burning. In the lower loads it had a LOT of muzzle flash but for some reason it diminished at the 6.3 and 7.0 grain loads. Why, I do not know.
I will chronograph the 7.0 grain load and post the results. It was snappy like you'd expect from a +p .38 special load, zero signs of over pressure. This powder could be a winner for what I wanted it for. .38+p and mid range .357.
Also, I have read that HS-6 and True Blue are the SAME powder, anyone know if this is true? I've read it on a few other forums. Load data is similar but not exactly the same as HS-6 on Hodgon's website. Thanks in advance.
Now the good news. Being the 640 Pro I have is a .357 magnum, I loaded 10 rounds with 7 grains (THIS IS OVER MAX FOR .38 SPECIAL) and with group #1 had 4 shots in one hole and pulled one a little to the right, the other 5 shot group was one ragged hole. The bullet used in this testing was Sierra 125 grain JSP with Fiocci small Pistol Primers.
This powder was very clean burning. In the lower loads it had a LOT of muzzle flash but for some reason it diminished at the 6.3 and 7.0 grain loads. Why, I do not know.
I will chronograph the 7.0 grain load and post the results. It was snappy like you'd expect from a +p .38 special load, zero signs of over pressure. This powder could be a winner for what I wanted it for. .38+p and mid range .357.
Also, I have read that HS-6 and True Blue are the SAME powder, anyone know if this is true? I've read it on a few other forums. Load data is similar but not exactly the same as HS-6 on Hodgon's website. Thanks in advance.
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