300BlkTalk

I went out and chrono the factory blacktip ammo and same bullet reloads with H110. I think I found my load at 19.2 grains of H110 seating the same depth as the factory load. Factory 2337, 2332, 2351, 2386, 2295, 19.4 2376, 2360, 2380, 2382, 2380 19.3 2340, 2344, 2366, 2384, 2338 19.2 2343, 2345, 23...

Has anyone received shipping info? Wondering if these are actually in stock... plus it says "online delivery" when calculating shipping costs.

hmm, I have 8lbs of this stuff sitting in my cabinet for plinking ammo, but I haven't done much with it.

This has me extremely curious if the same problem will occur in a 300BLK chambering...

I haven't read the whole thread, but I did this with my old DD barrel, H110, & 125gr SMK's. I still kick myself for replacing the barrel under warranty... Nice. What was your powder charge and COAL? 125gr SMK's 18.2gr H110 FC Brass (junk, see below) CCI 400 2.200 OAL 2,225fps MV (if I remember ...

I haven't read the whole thread, but I did this with my old DD barrel, H110, & 125gr SMK's. I still kick myself for replacing the barrel under warranty...

S2W profile? if so, that's what i have on my upper build. i was getting under 1" groups at 50yds with 110gr v-max.

Czar wrote:So, what is the length of a pistol gas tube for a 300 blackout build?
Thanks for the help,
Czar

i think you answered your own question...

You should be able to get 2 - 4 MOA with M80s Your powder charges sound high; when I hit 16.8 I was seeing extractor swipes. I dropped back to 15.6 grains H110/147 M80 pulls Seeing around 4 MOA BUT my Vortex Strikefire has a 4 MOA dot, so I cannot do any better without new glass! oh wow, I'm gonna ...

I finally got around to testing some reloads in my newly built 300BLK upper. The first few I fired were V-Max 110gr 300BLK cartidges and were under 1" at 50 yds, which really impressed me for the first few rounds from this rifle. The 147gr reloads were another story; they were all over the plac...

I have one and it throws consistent charges but I had to lap the surfaces to get the small amount of H110 to stop leaking. It took a LONG time to lap them but I don't have any more leaks. :mrgreen: how do you lap it? the leaking drove me crazy the last time i used h110. id like to know the answer a...