I have a Taurus Tracker in 45 ACP and 44 MAG both have 4 inch barrells, and I have had them for nearly 10 years and over 4000s rounds through the 45 and not so many through the 44. They have proven reliable and and accurate especially the 45 and I would not hesatate to use the 45 in any life or death situation. I really enjoy shooting the 45 Tracker and the 5 shot Moon Clips is very handy and fast. Taurus made a big mistake in stopping to make the Tracker in 45 ACP. I have a number of Taurus products and I feel that the Tracker is one of thier best.