Mossberg 940 Jm Pro-Series Shotgun 12 Ga. 24 In. Synthetic Black Tungsten Gray 3In Rh
Inside the 940 JM Pro, you will find a new durable gas system, nickel boron-coated internal parts for smooth operation, and a competition-level loading port, elevator, and follower. Outside, an adjustable stock and streamlined forend sport Mossberg signature texturing, while a host of stylized, functional components combine for competition — optimizing speed, accuracy, and durability.
12 gauge semi-auto, 3" chamber
24" vent rib barrel with Briley Ext Set chokes
9+1 capacity
Dual gas-vent system
Quick-empty magazine release
Ambidextrous Tang Safety
Stock with Adj. LOP, Cast, Drop - Black Synthetic
Caliber Dictionary
The Below Information Has Been Provided From Our Gun Caliber Dictionary And Is Meant For Informational Purposes Only. It Is Not Intended to Describe The Unique Specifications For This Ammunition.
12 gauge is the most popular and useful shotgun gauges ever made. Suitable for everything from doves to geese. With sporting, military and law enforcement applications. Available in 2 ¾”, 3” and 3 ½”. The magnum lengths are generally preferred for waterfowl and turkey. Most major manufacturers produce guns and ammunition in a very wide septum for 12 gauge. Loads from ¾ oz. to 2 oz. are common with 1 1/8 oz Low base and 1 ¼ oz being the most common loadings. Target loads are normally around 1150 to 1200 FPS with High velocity lead loads tuning up 1350 FPS. Steel waterfowl loads tend to be loaded faster around 1500 FPS to compensate lower density shot. While the 2 ¾” loading is still the most popular ammunition made, nearly all current production guns have 3”or 3 ½” chambers. The shorter ammunition can be safely fired in longer chambers, but not all magnum semiautomatics will function with shorter shotshells. — Craig Boddington
