Here is another quote from some other Lyman literature available online:
DEERSTALKER STAINLESS
The Lyman Deerstalker Stainless model has all the features of the standard blued model, but is made in corrosion resistant stainless steel. All major metal parts such as the barrel, trigger guard, lock assembly, escutcheons, and wedge are stainless steel for the greatest protection against black powder fouling and weather. The Deerstalker stainless models uses a 1 in 48" twist barrel for shooting conicals and sabots. Stainless parts have brushed finish to prevent glare.
Here is the other one so we can see them together:
Deerstalker Stainless
The new Deerstalker stainless model is as handsome as it is functional. This highly demanded rifle features true stainless steel on all of the major metal parts such as the barrel, trigger guard, lock assembly, escutcheons and wedge. The Deerstalker Stainless is available in percussion only and has a special 1 in 32" twist for shooting modern conicals.