From the Ruger website:
What type of ammunition should I use in my Ruger 9mm pistol?
The Ruger 9mm pistols are chambered for the 9x19mm NATO Parabellum (9mm Luger) cartridge, compatible with the U.S. and foreign military or commercial 9x19mm loads manufactured in accordance with NATO, U.S., SAAMI, or CIP standards, including high-velocity, subsonic, tracer, hollow point, ammunition loaded in aluminum, steel, or brass cartridge cases, +P and +P+ ammunition.
no
You will need to contact Ruger.
You need to contact Ruger for the answer to make sure the warranty isn't voided.
From the Ruger website: What type of ammunition should I use in my Ruger 9mm pistol? The Ruger 9mm pistols are chambered for the 9x19mm NATO Parabellum (9mm Luger) cartridge, compatible with the U.S. and foreign military or commercial 9x19mm loads manufactured in accordance with NATO, U.S., SAAMI, or CIP standards, including high-velocity, subsonic, tracer, hollow point, ammunition loaded in aluminum, steel, or brass cartridge cases, +P and +P+ ammunition.
yes
Not recommended
The Ruger 9 mm Model 94 is not a commonly referenced firearm, as Ruger is better known for models like the SR9 or the P-Series in 9 mm. If you meant a different model, please clarify. The value of any firearm can vary greatly depending on factors such as condition, rarity, and market demand, typically ranging from a few hundred to over a thousand dollars. For an accurate valuation, it's best to consult recent sales data or a firearms appraiser.
You will need to contact Ruger for a correct answer
If you are referring to the 33 round double stack magazine - I know it will fit the Ruger P-89. If the P-89 mag fits the P-85 your answer is YES.
Zero. Ruger never made the P38.
Check your owner's manual or call Glock.
50-500