Quote:
Originally Posted by Lewieke
...I have found some shells though BUT in order to get it approved I would need the OFFICIAL recharging tables for powder. I'm not into reloading but I presume they mean the specific data sheet for powder for 356TSW. Who can help me (with as many data sheets as possible to increase my chances) to find the data sheets for a common powder type!!
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Quote:
Originally Posted by skjos
I'm not sure if this will help or not, but the "Cartridges of the World" book points to two sources of data, maybe you can get something official from there. See attachment (in post 100).
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I know this is an old post, & I'm not knocking the effort to help a fellow enthusiast/collector/handloader, but I thought it important to qualify the handload data shown, 9.1gr/VV-3N37, for the 356 TSW cartridge.
The potential problem (I see) with this data is that no COAL" is stated with it.
SAAMI specs for the 356 TSW state the max. COAL is 1.160" for it.
In my 3566 Limited I load mine to no longer than 1.155" to ensure they feed properly in it's 9x19 M5906 style double stack magazine as 1.160" long rounds tend to stick on occasion when feeding.
I do not handload using 3N37 but I know it's very close to Power Pistol in it's burn rate, which I do use mainly, and 9.1gr is more than my max & would appear to be an overload.
SAAMI max pressure is listed at 50K psi for the 356 TSW.
QuickLOAD calculates 9.1gr/3N37 with 125gr JHP @ 1.160" COAL would be approximately
71.4K psi.
I believe the referenced data was from Jeff Maass who has compiled many IPSC Load Data sheets, for various cartridges, & can be found by doing a internet search.
However, I was unable to find an IPSC Load Data sheet for the 356 TSW by Jeff Maass but I "believe" that data likely originated from his 2001 9x21 IPSC Loads List sheet (below).
In fact, that exact load, W-W 124gr FMJ, 9.1gr/3N37 at 1446fps is listed in it,
BUT, the
COAL is 1.250".
In QuickLOAD a COAL of 1.250", using this recipe, yields an estimated pressure of
46.8K psi, much safer.
A COAL of 1.250" would work fine in a large frame pistol (1911, etc.) but is too long for the 9x19 sourced Super 9 or 3566 pistol magazines.
356 TSW cartridges loaded to 1.160" COAL using 3N37 & a 125gr JHP would need to use a reduced charge to be safe.
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