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Got a question about BLC-2 and load data. I recently began working up loads for my M4 carbine (16" bbl) using 55gr Hornady FMJ bullets and BLC-2 powder. I began chronographing in groups of 5 and when the loads reached 27gr, just 1/2 grain below max, the velocities still seemed way less than I expected even with a 16" bbl.
TNVV/NG/PVS-14-GP – U.S. Gen3 Filmed Green Phosphor! $2599. [ARCHIVED THREAD] - Subsonic 5.56 load data needed with Unique and 75 grain Hornady. ARCHIVED. Posted: 2/6/2015 2:02:51 PM EST. I understand the use of Subsonic .223 isn't ideal but I don't own a .30cal suppressor yet. However I have all the components and it would be nice to keep ...
A charge that works for a match bullet will be very close to the correct load for others in its weight class. Throughout all testing, primers should not be changed, as this can influence results. It is always a good idea to do a fine tuning by trying other primers. The .223 and 5.56 NATO do not require magnum primers.
The data for the Hornady 68grn HPBT in both a .223 and 5.56 chamber using TAC powder is listed below from my copy of Western Powder's V6.0 Reloading Manual: .223 Remington: 55,000psi - Std SAAMI Commercial Specs. (Page 30) 68grn Hornady HPBT, TAC powder: Start Load: 22.0grn - Max Load: 24.0grn - Max Pressure: 54,191psi - OAL: 2.250" (Velocities ...
there have been some questions for this... Caliber: 5.56mmx45NATO. (.223 Remington) Pressure spec: MIL <58700 Psi “Case mouth” = <62000 Psi chamber. Barrel length: 20” (For 16” barrel reduce velocities by 5 to 6% ca 150 Fps) Powder: Ramshot – TAC. Bullet weight: 55 grain FMJ (M-193). Start load: 25.0 grains (2925 – 3025 Ft/p/sec ...
IMR-8208 XBR was developed to meet NATO specs. The older Australian 5.56 ammunition is called, "F1" while the newer, NATO spec Australian ammunition is called, "F1A1." F1 is loaded with H322. F1A1 is loaded with IMR-8208 XBR, but it is not dyed dark as it is for Hodgdon's commercial powder.
Just wondering based on your experiences what you prefer for reloading 5.56 NATO and using CFE 223. I am leaning toward CCI #41 primers at this time. Posted: 12/27/2012 7:30:46 AM EDT. [#1] cc41 or Federal GM205AR are specifically made for 5.56 reloading. These primers are less sensitive and prevent slam fire from the free float firing pin in ...
It is common knowledge that 5.56 NATO may be loaded to higher pressures than .223 Rem and shouldn't be fired in .223 chambers. Loading for a 5.56 rifle, any published .223 load will be safe. If you really need the higher pressure 5.56 NATO loadings, I'd take a look at the data on the Powder or Bullet manufacturer's websites.
Hornady #10 has in addition to 223 Service Rifle also has 5.56 data, that is newer. The 60 /62 grain IMR-8208 XBR looks switched between 223 and 5.56 data. Hornady has free PDF's on their website. Speer has 223 and 5.56 in PDF on their website. Nosler has 5.56 data for the heavy match bullets, rounded to the half grain.
Reduce 10% and work up looking for reliability, safety, and above all accuracy! Quick check on Hodgdon site, and it showing a start load of H335 for 62gr bullet in 223 pressures of 19.3gr @47.5Kpsi, and Max load of 21.4gr @53.6Kpsi. Nato will allow up to 62Kpsi, but at your 25.2gr, your already past that kind of pressure as well.