[This 5mm/35 SMc™ loading data and information is only preliminary in nature. Some of these loads may generate case ruining pressure. Start low and work up carefully watching for all recognized signs of excessive pressure – difficult extraction, excessively flattened primers, blanked or partially blanked primers, loose primer pockets after several reloading cycles, leaking primer pockets, etc.

As of August 2005, a custom 5/35-chambered rifle built by Darrel Holland has already gotten two novice shooters into the Varmint Hunter's 500-yard club! Precision gun maker George Myer is building several guns in this chambering.

Experience with many propellants shows that SMc designs work with a wider burning rate range than one would expect – compared to conventional designs, these numbers are very forgiving. We have been able to obtain near normal results with ball-type propellants running the gamut from 2230 to W760 and with extruded propellants from H322 to VarGet (the latter is entirely too hard to use in a 20-caliber case, in my opinion). By has blown up many bullets with N540 loads so it is certainly capable of good velocity. There still exist many likely useful but untested propellants; however, I believe that we have looked at some of the best options – see data below.