old top break
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I'm putting this thread here because it may get lost and buried down in the reloading section and not get noticed, and it's an often asked question about top breaks, one that I asked myself but got no replies to here except one
after 2 months of occasional research, and also racking my memory because I vaguely remembered reading the info somewhere before, I finally found definitive information in my old Lyman reloading manual specifically for top break pistols of the late 1800's.
Lyman specifically states to not exceed their "starting loads" with smokeless powder for any top break pistol, being the top break is inherently weaker than a full frame design.
a good rule of thumb is, max load 2 grains powder for the 38 Sw, and 1 grain powder for the 32 SW, smokeless in both cases
I also found in my research some info from cartridge collectors, where they said when buying old ammo that is loose and assorted headstamps, if the cartridge case has a cannelure, it is most likely smokeless. And if the cartridge case is smooth, it is a factory blackpowder load. This applies to ammo produced up to around 1940.
yesterday I dissected 3 rounds of vintage ammo and sure enough that is correct. One was smokeless w/cannelure, and 2 were blackpowder loads without cannelure.
all were 38 SW loads. The smokeless load had 2.5 grains of powder, and BP loads had 5 to 6 grains of what appeared to be 3F BP
after 2 months of occasional research, and also racking my memory because I vaguely remembered reading the info somewhere before, I finally found definitive information in my old Lyman reloading manual specifically for top break pistols of the late 1800's.
Lyman specifically states to not exceed their "starting loads" with smokeless powder for any top break pistol, being the top break is inherently weaker than a full frame design.
a good rule of thumb is, max load 2 grains powder for the 38 Sw, and 1 grain powder for the 32 SW, smokeless in both cases
I also found in my research some info from cartridge collectors, where they said when buying old ammo that is loose and assorted headstamps, if the cartridge case has a cannelure, it is most likely smokeless. And if the cartridge case is smooth, it is a factory blackpowder load. This applies to ammo produced up to around 1940.
yesterday I dissected 3 rounds of vintage ammo and sure enough that is correct. One was smokeless w/cannelure, and 2 were blackpowder loads without cannelure.
all were 38 SW loads. The smokeless load had 2.5 grains of powder, and BP loads had 5 to 6 grains of what appeared to be 3F BP
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