I had read an article where a competition shooter used mobil 1 synthetic oil on a 1911. Is there any reason this would be a bad choice? I would tent to believe that motor oil would be ok since 3,000 miles equils a whole lot more abuse than 300 rounds at the range. If you think about it a pistol cycling 300 times would be like idiling your engine for 20 seconds.
If you actually read a can of gun oil--

HOPPE'S NO. 9 HIGH VISCOSITY LUBRICATING OIL

High Viscosity and Penetration For Firearms, Fishing Reels and All Mechanisms.


Or
REMINGTON REM OIL WITH TEFLON LUBRICANT.

For cleaning, lubrication and corrosion protection of fine sporting firearms.
Ideal for all outdoor sports and marine equipment.


Does shooting fish in a barrel mean my gun is now marine equipment?

Yup, you do not have to relube for 10,000 rounds or 10 months. And Hoppe's Elite gun oil for my Hemi. That gets expensive though...I am joking, thanks folks I am here all night, try the veal.....

I never heard of that although I have been asked that question before so at least one person has done it or is doing it. I would not though....

Have a great day....

The dirty little secret is that any decent oil of
reasonably correct weight will perform well within a
proper cleaning and maintenance regimen.
A lot of specialty oils are just expensive bottles.
Synthetic oils are temperature and viscosity stable.
A competition gun will be babied and not often
exposed to bad conditions, so why not use the stuff?

Yes. It is perfectly acceptable to use on a firearm.

For my competition guns, I generally use a Mobil One Full synthetic for lubricating the moving parts.

This in not to say that I lube it once and forget about it for XXXXX thousands of rounds because it can go XXX thousands of miles... it is a lubricant. And a Good one.

I shoot every week, and clean 1-2x per month depending on the number of rounds and competitions.

I go through 300 rounds (on average) per week and another 100 or so in competion.

I clean every other week or right before a competition. I have a TLE II I use for comps... I have NEVER had a failure.

For some guns I plan on storing for quite a while, I lube up with the Mobil One (it is a great protectant) and I place in a silicone sock, and in the safe. I have yet to have rust on any weapons.