I feel this is a very useful load to have and I'd be very interested in seeing what others came up with in regards to. In a true SHTF scenario, this could be a life saver if you need to kill your food silently without alerting those zombies around you as to your location. With proper shot placement (all shots should be properly placed) you CAN take down deer sized game out to 100 yards with this round. Remember, this is a 55 grain projectile at 1005 FT/s delivering 123 ft-lbs of energy. 223 that can be whisper quite and still take down game out to 100 yards. This will keep the 3.8 grains of powder over the primer hole ensuring full ignition of the powder when the primer is struck.Ĭouldn't get a great photo, but the cotton should fully cover the primer and be significantly lower than the bullet base when seated.Īfter seating and crimping the bullet in the normal fashion, take a black sharpie and color the tip of the round black so you don't get them confused with your super-sonic ammunition. Using your punch tool, gently push the wispy cotton into the case. Stretch out the cotton so that it looks like a bad Halloween spider web - very wispy and airy. 22lr round at 1000 FT/s is 88.8 ft-lbs)Īfter charging your primed case with the 3.8 grains of powder, rip off a tiny piece of cotton from a cotton ball - (quarter shown for size comparison.) This gives me 1005 FT/s at 123 ft-lbs of energy. The cases were trimmed to 1.743" and the Over All Length (with seated bullet) is 2.220" using a Speer 55 grain HPBT projectile.ģ.8 grains of the IMR Trail Boss powder is what I fine tuned. This was tested and dialed in on an AR-15, 16" barrel, 1:8 twist, mid-length gas system, with a YHM Phantom Suppressor. 308 ammo.Įveryone's weapon is different so don't use this recipe and expect the exact same results. It's primary design is for Cowboy Action type firearms - but it's large signature and fast burn rate make it an exceptional choice for creating subsonic. 223 ammo:Įverything needed to create a subsonic 55 grain round that will deliver 128 ft/lb energy at 1000 FT/sīullets, casings, scale, sharpie, cotton balls, punch tool, Trail Boss powderĪs you can see, the Trail Boss powder is seriously huge. Here is a general step-by-step on making subsonic. So, after another full day of experimenting, I've landed with the best recipe I can make for a 55 grain round and my weapon platform. IT IS A MUST FOR EVERY RELOADER TO READ THE RELOADING SAFETY RULES.I've been tinkering over the past few weeks trying to use different powders and loads to create the perfect (for me) subsonic. Pressure is measured at the case mouth or from inside the case according to the CIP.ĭO NOT ATTEMPT ANY EXTRAPOLATIONS. These test methods have been deemed to be safe throughout the world. The listed maximum loads have been determined according to the respective CIP/SAAMI maximum pressure specification, whichever is lower. The data given here were obtained in laboratory conditions following strictly the CIP (Commission International Permanente) Jand Novemrules. We wish you successful reloading with Vihtavuori premium rifle powders! DisclaimerĪll of this reloading information has been provided by Nammo Lapua Oy and Nammo Vihtavuori Oy. Please note that due to safety regulations, we can’t suggest or recommend loads or bullets that are not available on this site. The listed maximum loads should never be exceeded. All the rifle loads on these pages are pressure tested according to the C.I.P. charge weight in grams and grains as well as muzzle velocity in meters and feet per second. For flexible usage, we provide our reloading data in metric and imperial dimension systems, i.e. On the list below, you can find all the rifle reloading data we have currently available. Rifle reloading – handloading data for rifle calibers
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