Just starting out - loads for HP-38/Win-231 and cast bullets?

[deputyG23]

I thought that Win231 with 124's was a little harsh ... 147s with 3.5gr is so soft and easy to shoot. Accurate too.

With the Beretta I'm finding that .357" projectiles are more accurate. (I had tumblers with .356" sized bullets)

New SNS red coating is really nice... Far less smoke than any other coated...

That is my experience as well. I order my 122 grain FP cast bullets from Dardas sized .357. Shoots great with no leading in my Beretta 92 compact and Glock 19 with stock barrel.

[GuanoLoco]

http://www.doodieproject.com/index.p...-5#entry156400

9mm
Winchester 231 (aka HP-38)
135 gr Bayou Bullet - Hitek Coated
Federal Small Pistol Primers
1.090-1.100 COAL
EAA/Tanfoglio Stock 2 - 4.5" Barrel, Polygonal rifling

3.5 gr 911 fps, 122 PF
3.6 gr 957, 129 pf
3.7, 980, 971, 131-132 pf
3.8, 989, 992, 133 pf
3.9 1007, 135 pf

10 rounds @ ~72F: Lo 994, Hi 1039 (Flyer), Avg 1004, E.S. 43

8 rounds heated on oil heater - avg 972.5, 131 PF
10 rounds from chest freezer - avg 1017, 137 PF. 3 'hot' rounds at 1032, 1041, 1042 fps.

WTF? Win WST AND Win 231 are both reverse temp sensitive? Who'da thunk it....

This powder seems a little more manageable than WST but is definitely showing primer flattening at 138 PF. Less at 131-134 PF.

I guess if you are Leadchucker and shoot in a predictable climate that this could be a good choice.

[Sal Picante]

http://www.doodieproject.com/index.p...-5#entry156400

I didn't find that Win231 was temp sensitive at "normal" temperatures.
https://pistol-forum.com/showthread....(Win231-HP-38)

[GuanoLoco]

Frankly I was all set to disprove the whole 'reverse temperature sensitive' theory with WST. It frankly sounded like complete bunk. I was quite surprised to see a lot of temperature sensitivity with WST and yet again (but lesser) with Win 231.

My methodology on temperature is a bit extreme. I've shot matches in well below freezing weather, and matched where black mags in black mag pouches are baking under the hot southern sun. I know temperature insensitive powders are available and use them. Also, I usually load to 134PF so temperature and 'making minor power factor' is a non-issue for me. For me being 'on the edge' woud be 131 PF.

Win 231 looks workable.

If i didn't have a better option I would have investigated further - including mor moderate temperature ranges. I still have most of a pound, so I might mess with it further for grins but this isn't a priority.