He needs to stick to emptying the garbage cans under adult supervision. If Bob did give you Tin Star data for an AR, and he is the same Bob who gave crap advice as before, he seriously needs to be kept off the customer service/load data area of the company. If he gave you data, post it or send it to me in a pm. N32C, AKA Tin Star will not even begin to cycle an AR. I hope with all my heart that Bob at Capstone was giving you data for a bolt action or a single shot. Hornady probably has the best data for VihtaVuori powders. All three will work as a super without suppressor, subs is more the reference above. N110 will work with pistol gas without a suppressor with bullets 208 and over. N120 will basically be the only one that will work without a suppressor. If it will cycle subs in 300.then I might get some dies and 240 SMKs, dust off the chargemaster, and roll some ammo for the first time in 6 years.ħ62r25, the thread is more about N120, but N110, N105 and N120 all will work in an AR. It seemed to be the only powder to best H110 for velocity with 300+ grain bullets and burned much cleaner. I have a bunch of N110 from when I had a. I always found that odd as I thought it had an H110 burn rate. I thought I had read that when AAC was doing the initial load testing they ruled out N110 for subs. Starting load 11.5 2.2fps in a 10" barrel [Edit to add link to old Sierra data for 300 Whisper: If those pictures don't load let me know. Using a bullet they designed for subsonic use with Lapua. It's also possible whoever answered the email had their head in their ass and can't read Vihtavuori's own data. That much compression, as I said before,can be a problem. I think you might have asked the question poorly. I have no problem using the powder for subs or supers. Those loads are good for about 2.5" at 200 yards. I have found my best accuracy around 103-5%. That oddly enough comes in just over 110% load density. Tables don't copy well but that's a 200 grain bullet with a starting load of 10.2 grains at 2.244" and a max load of 15.7 grains. Lots and lots of guys on 300blktalk have played with 1680 and CFE BLK for heavy supersonics so might want to take a look at their experiences.VihtaVuori wrote:Bullet 13,0 g / 200 gr FMJBT, Lapua C.O.L. You can play a little bit, try loading them at 2.22" and see if they feed and cycle fine, it'll allow you a slightly higher charge and lower pressure. Well it'll really depend on your COAL, because AA1680 and CFE BLK don't mind being slightly compressed but you'll have to watch for pressure sign.ġ68 SMK 2.18" 19.2 - 19.7 -> Be careful 19.7 is max book load.ġ75 SMK 2.18" 17.8 - 18.4 -> 18.4 is max load. Obviously a good chrono is a must when loading subsonics. I prefer to be in the 980-1020FPS range but some people like to be in the 1040-1060 range, it really depends on your outside air temperature. Now I can run Lapua 200gr with 8.3 gr 2.15" OAL and still be in the magic 1000-1020 FPS range and hold the bolt on last round.įor 220 GR with N110, start at 9.0-9.5gr and work your way down to 8.0-8.5. Stock I couldn't get it to cycle reliably with those fast powders unless I used heavy SMK 240s and run them in the 1080fps range. My 10" Noveske has no issues now that I use a JP SCS with the tuning kit and Faxon Low mass BCG. If you have a can, it'll help a lot, otherwise it might still work depending on your GB port size, BCG and buffer balance. But n110 is a faster powder than 1680 or CFE BLK so you're on the edge of reliability for a typical 300blk gasser.
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