1680, 40 grain VMax, and CCI Small Rifle primer was my go to load for years. Never could get Lil Gun to group or burn clean.
Mule Deer suggested trying CCI Small Rifle Magnum primers and since doing so I have beem using Lil Gun exclusively.
11.8 grains Lil Gun ( actually I do not weigh them anymore I use a scoop ), CCI Small Rifle Magnum primer, and 40 VMax gets me about 2900 fps and great accuracy. I also use a Lee Factory Crimp collet die for uniform pressure. It does help accuracy.
Great little cartridge.
