Is this something recent? If so, you probably have some debris filling the "safe" pall hole in the spindle attached to the lever. Before taking it to a smith, try removing the bolt shroud and soaking it for several hours in solvent. If the gun was like this when you acquired it, the pall hole may not be located in the correct location (possible but unlikely). The Parkwest Model 70 style safety I bought for my 98 Mauser would jump out of position #2 into fire when the bolt was closed hard. The hole for #2 was incorrectly located. They offered to replace it but the smith who put on the barrel had another lever handy and replaced it.To add to the op's question, anyone know a place that tunes up a pre-64 safety for a readable price. My one isn't snapping into position on the first safe postion.