frogger490786 asked:


I have a barrel the with formulas estimated to hold 12,789 PSI 50grains of gun powder would generate 11,000 PSI which would in danger the barrel of exploding and metal killing people.(not the wanted results!)
So i would use 6.25gr. which would generate 1,375 PSI and i think that is acceptable. Or i could use 3.125 gr. getting 687.5 PSI. And my barrel is a soft ball bat… that hold yes 12,785 PSI

Direct Vent Gas Fireplace