Generally, oil for me. I also use a mix of both similar to what the 'School Of The American Rifle' guy posted on YouTube. I find it very good for AR-15 BCG.
Never had an issue using grease in a gun, but when it comes to 1911, I really respect Bill Wilson's opinion.
Never had an issue using grease in a gun, but when it comes to 1911, I really respect Bill Wilson's opinion.