SPG Tropic Bullet Lube is designed specifically for shooters that shoot in high/hot temperature environments or matches. For years there have been rumblings about different lubes melting or fouling out in hot dry conditions. This is the answer for that. SPG Tropic was developed to address the following: 1. Perform under high temperature shooting conditions. 2. Maintain the accuracy expected of Classic SPG Bullet Lube. 3. Eliminate the need or perception to wipe between shots vs. blowing. If this picks at your interest, this is definitely a bullet lube you need to try. As with Classic SPG bullet lube, Tropic will work with Black Powder and Smokeless. You will be pleased with its' performance.