The ballistic comparisons between .50 caliber ammunition and full-bore tank ammunition are negligible. This provides realistic sub-caliber training at full-scale ranges with comparable accuracy.
The cost of full-bore main gun ammunition continues to rise. This cost comparison reflects costs for some of the most used ammunition. The AIMTEST or GTS .50 Caliber Gunnery Training Device can save thousands of dollars (US) in one gunnery. The devices pay for themselves in only one gunnery training period.