Winchester 9mm NATO Full Metal Jacket

A: With the older Star 9mm I would stay away from the "NATO" marked 9mm ammo for 124 grain I recommend this https://www.budsgunshop.com/catalog/product_info.php/cPath/656_2081_10000837/products_id/712015085/BLAZER%20BRASS%209MM%20124GR%20FMJ%2050/20/

A: Michael, "Standard SAAMI" pressure 9mm will shoot just fine in the older Star. The rounds to avoid are the 9mm loads marked +P, +P+. This is an all steel pistol and won't explode with firing an occasional hot round but don't fire a steady diet of them. http://averagejoeshandgunreviews.blogspot.com/2014/02/star-bm-9mm.html

A: Avoid the NATO spec ammo, NATO spec. means military standard ammo. This ammunition is frequently loaded to higher pressure than civilian ammo. The ammo industry uses something called SAAMI Standards to establish the pressures that ammo should be loaded to. The SAAMI pressure for 9mm Luger ammo is around 35,000 PSI, and C.I.P (think European SAAMI) rates 9mm Luger ammo at 34,080 PSI. According to documentation, the 9mm NATO rounds are pressured at 36,500 PSI (again according to CIP). That means that when compared to standard 9mm ammo, the 9mm NATO ammo is running a higher pressure, analogous to a 9mm +P load, which SAAMI rates around 36,000 PSI. http://www.gunnuts.net/2009/04/03/9mm-nato-vs-9mm-luger/

A: Hi Michael, Use the blazer brass not the NATO.

A: 9mm NATO is loaded to pressures 10% to 15% higher than industry standard pressure for 9mm Luger. This places the ammunition in the "+P" category, which can cause increased wear on firearms. Though this ammunition is safe in most modern firearms, it is not intended for older firearms or ones not made by quality manufacturers. As with any ammunition please ensure proper inspection of your firearm before shooting to ensure the firearm is in good condition and is safe to shoot. I have shot Nato rounds from my clock and all of my Sig Sauer 9 millimeters and they all work just fine.