Federal Syntech Defense Brass .40 SW 175 Grain 20-Rounds SJHP
Syntech Defense Features
All-new Syntech Defense provides dynamic terminal performance with a hollow-point bullet that separates into three segments and a deep-penetrating core on impact. The core penetrates 12 to 18 inches through bare ballistics gel and heavy clothing a critical benchmark in self-defense situations and the best terminal performance of any round in its class. The petals create three secondary wound channels, each more than 6 inches deep, adding to the terminal effect. Like all Syntech loads, an advanced polymer jacket eliminates lead and copper fouling and drastically reduces damaging heat and friction in the barrel. Its Federal exclusive Catalyst primer provides hot, extremely reliable ignition without the use of lead.
Syntech Defense Specifications
Caliber: 40 S&W
Bullet Weight: 175 gr
Rounds Per Box: 20
Casing Material: Brass
Application: Personal / Home Defense
Bullet Coating: Polymer
Bullet Type: Segmented Jacketed Hollow Point (SJHP)
Muzzle Energy: 272 ft lbs
Muzzle Velocity: 1000 fps
CALIBER .40 SW
CONDITION New in Box
FINISH PER COLOR Brass
MANUFACTURER PART NUMBER S40SJT1
MODEL Syntech Defense
TYPE Handgun Ammo
UPC 604544651089. Federal Syntech Defense Brass .40 SW 175 Grain 20-Rounds SJHP
Winchester primers come in WSP, WLP, WSR, and WLR flavors – small pistol, large pistol, small rifle and large rifle. They use the same primer for standard and magnum loads, which in essence means they are all magnum primers, and they act that way on a chronograph, with larger standard deviation in velocity than I get with a standard primer from CCI.
My preference in primers for standard loads is CCI, and generally speaking in a good load I can get standard deviations in velocity in the high single digits or low teens, where the same load may have and SD of 25-30 with a Winchester primer.
I’ve had good luck using CCI primers. From what I understand CCI benchrest primers are usually easier to ignite than their regular, magnum and military style primers. And the military and magnum primers need a harder strike to ignite.
I had my best groups at 100 yards using CCI BR primers in my AR-15 in 5.56. However, I don’t recommend using them in an AR because they would be the ones most likely to slam fire.
Never had a misfire or slam fire with either the CCI #41 or BR in the AR. Remington Small Rifle Bench Primers #7-1/2 Box of 1000