there are two different sizes of guns. a 10oz and 29oz. make sure you order the size for your gun or buy a different gun. 1 of 1 found this helpful.

Are there different size caulk guns?

Caulking guns come in a range of sizes from smaller 10-ounce models good for home improvement, to battery powered sausage guns for pros who work with adhesives all day.

What can I use instead of a caulking gun?

Wear a latex glove to prevent the latex from sticking to your finger, dip your finger in water, then smooth the edges. You can also use an applicator tool such as the Adseal Blue Shaping Tool. Finally, you can touch up any imperfections by reapplying caulk.