Which ammunition types are commonly used in SDI training, and how do they differ?

Which ammunition types are commonly used in SDI training, and how do they differ?

• A. Tracer rounds are commonly used for SDI training.
• B. Practice FMJ ammunition for reliability and cost; defensive ammunition (e.g., hollow-point) for performance; differences in expansion and barrier penetration.
• C. Blank rounds are used for reliability testing.
• D. Defensive ammunition is commonly used and never used in training.

Answer: (B)