Some argue for bulky powders, others for FAST powders so as not to cause detonation when what you want is just a quick pressure spike. Load I decided on is a 180 grain Sierra RN, 2.700" OAL, Win Standard primers and 8.2 grains of BULLSEYE. Thanks normbal.ĭo some googling on this one, it's been beaten to death, especially in Finland of all places where buying a suppressor is cash and carry. I have found that using Bullseye for cast 44 mag subsonic resulted in leading in the bore.
You need to know the range to the target very well in order to ensure correct shot placement.Įdited to add I forgot about using Bulleye. With a 200 yard zero, you will still be at least a foot high at 100 yards. Past 200 yards a subsonic bullet is moving downhill very quickly. It has been my experience that you can expect your groups to average 1.5 to 2 times larger with subsonic ammo in a gun intended for supersonic ammo. Magnum primers give more consistent ignition and lower standard deviations. 1-10 is good for round noise 220 grain bullets, but they will keyhole with a 1-12 twist. Start with about 15 grains in a 308 case and a 220 grain bullet.Įnsure your twist is right. H110, V110, 4227 and any other magnum pistol powder is good for subsonic rifle loads. I use WC820, it is like H110 and entirely safe to use in reduced loads in rifles. Lowers speeds give less power, higher trajectories and the potential for increased yawing which can be hazardous to your silencer if you are using one. Faster than 1100 fps and you risk a sonic boom especially in colder temperatures. The projectile profile may slightly vary from the picture displayed.First, no matter what data you use, you will need a chronograph. This round is loaded to SAAMI specs along with integrity and attention to detail to ensure reliability and outstanding performance. 308 ammunition is loaded with a brass casing, large rifle primer and IMR powder along with a 175 grain hollow point (HP). 308 terminal ballistics provide serious stopping power in a compact package. These two methods together make a very quiet combination. The suppressor stops the sonic signature of the gases pushing the projectile which too are super sonic. This SUBSONIC round is ideal when used with a suppressor. 308 ammunition is great for keeping your skills sharp at the range, precision shooting, hunting or competition events!
When loaded with a bullet that expands, tumbles, or fragments in tissue, this cartridge is capable of high terminal performance. 308 Winchester especially well adapted for short action rifles. It is also commonly used for civilian target shooting, military sniping, and police sharpshooting. 308 Winchester has become the most popular short-action, big-game hunting cartridge worldwide. Winchester’s Model 70 and Model 88 rifles were subsequently chambered for the new cartridge. Winchester (a subsidiary of Olin Corporation) branded the cartridge and introduced it to the commercial hunting market as the. 308 Winchester was introduced in 1952, two years prior to the NATO adoption of the 7.62x51mm NATO T65. 308 Winchester is a rifle cartridge and is the commercial cartridge upon which the military 7.62x51mm NATO centerfire cartridge is based.
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