Geno;
Pronounce that "Lead" as "Leed" as in how far ahead of the target the gun is pointed when the "Lead" shot (pronuced "Led") leaves the bbl. One of those quirks in the English language. Both words are spelled identical, but pronounced different according to different meanings.
The gun thus would be pointed 41.23 inches ahead of the target or about 105cm at discharge

Miller/TN
I Didn't Say Everything I Said, Yogi Berra