![]() ![]() Yes, it leaves a lot on the table for velocity, but I haven't seen a more accurate powder. I switched to a 8' CMMG barrel because it was lighter and move the suppressor closer to the hand gaurd - looked cooler. Stayed sub sonic and cycled suppressed and locked open plus stayed sub sonic in a ruger ranch rifle with 16' barrel. 17.0 Grains of N110 with a 125 SMK in a 10' barrel 2,100 fps. I had been using 8.0gr lil gun under 220 ELD out of a 8.5 psa barrel. At any rate, final dial in with the scope should be done with the rifle configured as you intend to shoot it. 2000 fps+ is easy with a 125, so if that's all your getting with a 110, you've left a lot on the table. From what I see on the burn rate chart, the VV N110 is very close to the H110 (slightly slower). Many silencer manufactures claim a minimal POI shift with their products, however I think it is more a function of altered barrel harmonics than silencer design, but I couldn’t say for sure. Point of impact shift with the silencer attached and detached was significant in my application. I know this seems nonsensical, but I have observed it on every load. Once you have determined that your load is on spec for velocity and is stable, then you can finish up fine tuning the load for use with the silencer, which in my experience will general add anywhere from 10 to 25 fps to the velocity of any given sub-sonic load. An unstable bullet could very well contact the baffles or end cap of a silencer resulting in damage. I tried many different bullet and powder combinations and more than a few failed to stabilize in my 1-8" twist barrel as was evident by the key-holes in the target. Keep forgetting stuff! If you plan to shoot with a silencer, you should do your load development without it installed on the rifle. I didn’t like many of these powders due to the smoke they produced, which would linger for quite some time trapped in the baffles of the silencer, leaving a steady wisp of smoke coming out that would obscure my vision thru the scope on calm days. VihtaVuori N110 = 9.0 gr gave 1050 fps, great accuracy, no smoke. Hodgdon H4895 = 14.0 gr gave 1044 fps and decent accuracy. This was a load the 300 Whisper guys have been shooting for years. Hodgdon H110 = 9.6 gr gave 1041 fps and decent accuracy. IMR 4198 = tried 10.2 gr to 10.7 gr and the extreme spread was always high and the loads not very accurate ![]() My results differ a bit from the published data, but I think every rifle is unique in this regardĪlliant Unique = extreme velocity spread and pierced primers and sticky extraction at around 860 fps which was 6.0 gr of powderĪlliant RL #7 = 11.4 gr was a compressed load, velocity was low 981 fpsĪccurate 1680 = 11.2 gr was a good load 1024 fps and is reportedly the go-to load for autoloaders. That said, I tried the following powders with the intention of finding an accurate sub-sonic load with either the Sierra 220 gr hp bt, or the Hornady 225 gr hp bt This link to nosler covers their 110gr varmaggedon all the way through their 220gr HP.īelow will be links to PDFs for all of Speer reloading data for their bullets from 110gr-200gr.The OP didn’t mention if he was trying to load sub-sonic or if he was using in conjunction with a suppressor/silencer. ![]() It’s especially nice in states like Virginia where we have a minimum caliber to hunt deer and 300 blk passes the restriction that 223 can’t.Ĭheck out our 300blk head stamp chart to determine if your brass is suitable for conversion! You can load just about anything from 100gr supersonic to 240gr cast subsonic with no real modification to the firearm. This is where you will be able to reference links to PDFs, websites, and other great FREE resources all compiled for you to use!ģ00 blackout is such a neat cartridge, very versatile.
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