Originally Posted by Trav
I see this old thread has cropped up so let me say I went back to using Mobil 1 red synthetic. It does not significantly leak out of the new gun I bought a few years ago only a slight weep after a long time. It is a very good grease but that leaking in one gun was terrible, what a mess.
The trick is to put the gun in a plastic bag with a rubber band while storing it.
That's what I do, put it a 2.5 gallon ziplock bag with an absorbant paper towel.
BTW, the new Polymer Greases (such as what Asmoil and others sell) seem to be more stable under heat and more flowable in cold weather.