rustybayonet Posted March 6, 2018 Share Posted March 6, 2018 Looking to replicate military ammo. Link to comment Share on other sites More sharing options...
practical_man Posted March 6, 2018 Share Posted March 6, 2018 25.5 grains of 748 wil get you close. Or an equivalent dose of 322. I have ave been using win 748 lately because it’s available. I get about 3000 FPS velocity from a generic 20” barrel. Link to comment Share on other sites More sharing options...
practical_man Posted March 6, 2018 Share Posted March 6, 2018 Using Hornady 2267B bullets and Winchester small rifle primers. Link to comment Share on other sites More sharing options...
rustybayonet Posted March 6, 2018 Author Share Posted March 6, 2018 I don't have a crono, but I do have Hornady 55 fmj and winchester srp's. I was going 25 grs of 748, I will kick it up! Link to comment Share on other sites More sharing options...
rustybayonet Posted March 6, 2018 Author Share Posted March 6, 2018 4 hours ago, practical_man said: 25.5 grains of 748 wil get you close. Or an equivalent dose of 322. I have ave been using win 748 lately because it’s available. I get about 3000 FPS velocity from a generic 20” barrel. What brass are you using? My notes, I was using .223 with the 25gr 748. Weread you using 5.56 brass? Link to comment Share on other sites More sharing options...
M1A4ME Posted March 6, 2018 Share Posted March 6, 2018 Seems like about the only powder company that lists 5.56X45 loads separately from .223 Remington loads is Accurate Arms. It's right after the .223 data, starts on Page 30. http://www.accuratepowder.com/wp-content/uploads/2010/09/WesternLoadGuide1-2016_Web-1.pdf Link to comment Share on other sites More sharing options...
practical_man Posted March 7, 2018 Share Posted March 7, 2018 19 hours ago, rustybayonet said: What brass are you using? My notes, I was using .223 with the 25gr 748. Weread you using 5.56 brass? I used Federal brass mostly. Sometimes PMC. Sometimes Lake City. Whatever is available locally. Federal brass isn’t the best. Primer pockets start getting loose after 3 or 4 loadings. Not a real problem. Just need a couple buckets to keep brass segregated. A blown own primer from loose pockets isn’t catastrophic but it is annoying if the primer happens to fall into a place that interferes with trigger group. From my experience, Lake City suffers the same problem with softer case heads compared to other brands. Lake City brass might have less internal volume than Federal. And it might not. My limited sampling is not conclusive. I stopped worrying about it. I just chrono batches when I change components. A chrono might be the most useful $100 spent in hand loading gear. I have had a couple over the years. A PACT and a Chrony brand. They both worked fine. Link to comment Share on other sites More sharing options...
RiggerJJ Posted March 7, 2018 Share Posted March 7, 2018 Get a crono, before you start load development... Link to comment Share on other sites More sharing options...
frankge Posted March 8, 2018 Share Posted March 8, 2018 (edited) I dunno, I'm using 26.2 of 748 26.0 got me and average of 2817 with mixed brass with a 16" 1-7 barrel Edited March 8, 2018 by frankge Link to comment Share on other sites More sharing options...
12glocks Posted March 9, 2018 Share Posted March 9, 2018 When I used to use Hornady 55's and used 26.0 grains of 748 I think I got around 2800 FPS out of a 16' barrel. M855 went over 200 FPS faster out of the same barrel. Link to comment Share on other sites More sharing options...
notfast Posted March 9, 2018 Share Posted March 9, 2018 25.0 A2230Hornady 55 FMJREM 7.52.220” OALMixed brass. Mostly LC. 3007 FPS 15 shot average from 16” Stretch 16 Melonite. 3122 FPS 9 shot average from a Faxon 20” Melonite. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
CPD7119 Posted March 27, 2018 Share Posted March 27, 2018 Buy a chrono if you are wanting to replicate nato 5.56. You'll be getting up there in pressures. A chrono would be a wise investment. Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted March 27, 2018 Share Posted March 27, 2018 7 hours ago, CPD7119 said: Buy a chrono if you are wanting to replicate nato 5.56. You'll be getting up there in pressures. A chrono would be a wise investment. Have to agree strongly with Rigger and CPD - you are not well advised to be developing high pressure loads without a chrono. You can get into trouble very quickly and unexpectedly Link to comment Share on other sites More sharing options...
stick Posted March 27, 2018 Share Posted March 27, 2018 2 hours ago, Hi-Power Jack said: Have to agree strongly with Rigger and CPD - you are not well advised to be developing high pressure loads without a chrono. You can get into trouble very quickly and unexpectedly With the gun that close to your face and hands. You're playing with fire. Get a chrono! Link to comment Share on other sites More sharing options...
bigedp51 Posted March 28, 2018 Share Posted March 28, 2018 (edited) http://www.frfrogspad.com/miscellq.htm#duplicate ALL LOADS USE MILITARY BRASS (except the 9 mm), AND MILITARY BULLETS (OR THEIR COMMERCIAL EQUIVALENT). REDUCE ALL LOADS BY 10% (EXCEPT THE LOAD MARK BY *) AND WORK UP Military Ammunition Equivalents Cartridge Bullet Weight (gr) Velocity f/s Suggested load(s) M41 .38 130 950±45 6.3 gr PowerPistol, 5.2 gr Unique or Universal M882 9 mm 124 1230±50 6.4 gr Accurate #5, 8 gr BlueDot M1911 .45ACP 230 820±25 5.2 Bullseye M193 5.56 mm 55 3250±40 26 gr. of H335, 26.5 gr TAC M855 5.56 mm [for 5.56 NATO chambers ONLY] 62 3020±40 26 gr of TAC MK262 5.56 mm [for 5.56 NATO chambers ONLY] 77 2750±30 24.5 gr TAC M80 7.62 mm 149 2750±20 42.5 IMR4895, 46 grs. 748 or Ball C2 M118 7.62 mm Special Ball 173 2550±30 43 grs. of RL15 or 748 M118 7.62 mm Special Ball LR (Sierra MK bullet) 175 2580±30 42.5 grs. of Varget, M852 7.62 mm MATCH (Sierra MK bullet) 168 2550±30 41.5 IMR4895 M2 Cal .30** 150-152 2740±30 49 grs. IMR4895 49 gr 748 50 gr IMR4064 M72 Cal .30 MATCH** 173 2640±30 47 gr IMR 4895 47.5 gr 748 47.5 gr IMR 4064 M1 Cal .30 carbine 110 1900±30 14 gr 2400 or 14 gr H-110* * Do not reduce H110 more than 3%** Powders list are the best burning rate for use in the M1 Rifle Edited March 28, 2018 by bigedp51 Link to comment Share on other sites More sharing options...
rustybayonet Posted March 30, 2018 Author Share Posted March 30, 2018 For now, I'm just sticking with my known safe load of mixed 5.56 brass, 55 gr. Hornady and 25 gr. 748. I'm happy till I get a chrono. Link to comment Share on other sites More sharing options...
practical_man Posted March 31, 2018 Share Posted March 31, 2018 Missouri has a decent chrono kit on sale for $119 right now. Frank ford Arsenal brand, with tripod and light kit. It gets good reviews. I suspect it it is as good or better than my shooting chrony brand that replaced a PACT brand. I just ordered on to leave at brothers house. Like I said before, a chronograph is money well spent for hand loaders. I put it about third in priority for measuring tools. Right behind a good powder scale and quality calipers. -John Link to comment Share on other sites More sharing options...
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