[vonnieglen]

The only primers I could find last month locally were Federal small pistol magnum primers. With great trepidation I substituted them in my Nagant Revolver, Makarov 9x18, and Tokarev cartridges using Titegroup powder and starting light. I did find some Titegroup recipes ahead of time which used magnum primers. Titegroup leaves these cases just half to a third full to begin with, but is designed to be used that way.

With Titegroup powder the magnum primers made very little difference and the loads were consistent according to my chronograph. I never saw any over-pressure signs. I used up the box of a thousand and am now back to the CCI small pistol primers that I normally use. I don't have the experience level of most here, but I think the powder selection could be very important with primer substitution. Titegroup is a fast powder.