The max load will be around 4.9 grains of WST if you use a long OAL. I load a little shorter than some people do so I will max out around 4.8 grains of powder. 4.5 grains of WST powder with an OAL around 1.250 should get you around 800 fps in a 5" barrel plus or minus a little. It makes a nice accurate load in my opinion. Group size will start to open up when you approach the top end. You do need to work up a load to get it accurate for your pistol. I would start around 4.1 grains to see what works for you.
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