At the time of his retirement, Musial held or shared 17 major league records, 29 NL records, and nine All-Star Game records. Among those records, he ranked as the major league career leader in extra-base hits (1,377) and total bases (6,134). He also held NL career marks in categories such as hits (3,630), games played (3,026), doubles (725), and RBI (1,951). He finished his career with 475 home runs despite never having led the NL in the category. Jerry Lansche speculates Musial would likely have become the second player, after Babe Ruth, with 2,000 RBI, and would have exceeded 500 career home runs had he not served in the military. His lowest full season RBI output before the war was 72 (in 1942) and as he needed only 49 RBI to reach 2,000 for his full career, he certainly would have exceeded 2,000 RBI by playing without injury in 1945. His home run production is a different story and it is highly unlikely he would have reached 500. He did not hit more than 13 home runs in any season before he entered the navy and did not hit as many as 25 (the number he would have needed to become a 500 career homer club member) until 1948, 3 years after returning to baseball from World War II. His career hit total was evenly split between 1,815 hits at home and 1,815 hits on the road. Steven R. Bullock speculates that it is possible that without military service Musial might have continued playing to attempt to exceed Ty Cobb's career hit record of 4,191. Even if Musial had hit safely 207 times (the average of his hits in the 2 years before and the 2 years after his service in the navy) in 1945, he still would have been 354 hits short of tying Ty. His hit total in his last season at age 42 was only 86; even if he could have had 103 hits a season (the average of his last 5 seasons) he would have had to play to age 47 to attain the hits record.