Lott says his research shows that guns used defensively stop about 2 million crimes a year, five times the amount of crimes in which guns are used.
Source - First thing I found...
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Now, for that .45 ACP diegoblunt posted.
Beretta Model M8000/8040 Cougar
Caliber: 9mm Para., 10-shot, 40 S&W, 10-shot, 45 ACP, 8-shot.
Barrel: 3.6".
Weight: 33.5 oz.
Length: 7" overall.
Stocks: Checkered plastic.
Sights: Blade front, rear drift adjustable for windage.
Features: Slide-mounted safety, rotating barrel, exposed hammer. Matte black Bruniton finish. Imported from Italy by Beretta U.S.A.
Price: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $695
Price: D model, 9mm, 40 S&W . . . . . . . . . . . . . . . . $672
Price: D model, 45 ACP . . . . . . . . . . . . . . . . . . . . . .$724
Price: Box of .45 (50) . . . . . . . . . . . . . . . . . . . . . . . $10-30 (Average)
Price: Average price per bullet (.45) ~20-60 cents.
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Not really someone to go out target shooting with, because ammo is so expensive.