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Posted: 4/13/2010 6:38:19 PM EDT
| Anybody have any good 5.56/.223 loads using TAC powder with 55gr Hornady SP? I need a good idea where to start. I've not used this powder before. Thanks! |
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Begin loading with the "start" load and work up watching for pressure signs.
The "start" load is the lowest charge shown in a reloading manual. This is the safe method of reloading, guns, components, methods all vary. Using this method, you will find what your gun likes best for a charge. Tac is a great powder for 223 loads, good luck. Welcome to Arfcom. 
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For 55 grain loads, TAC seems to give less felt recoil than, say, H335. On a longer barrel I am sure muzzle velocities are about the same, but my 55 gr Hornady FMJ loads feel night and day different.
And yeah, I started up from the minimum, and worked up until I got a nice and tight group. Can't say anything bad about the powder, at all. |
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I am using TAC and like the metering for 223. I had too many problems metering Varget in my Hornady L-N-L for a 223 (works OK for my 308 loading); when the meter was sheering the Varget extrusion sometimes it ended up crushing the thin case.
Anyway, currently loading with 25 g TAC, 55 grain Hornady FMJBT; CCI 41 primer, OAL 2.24, Lake City brass, light crimp with a Lee factory crimp die; rest of the dies are Hornady. I had started at 23.5 g TAC and worked up in 1/2 grain increment. Look at the books and work your way up. I am just making ammo that is reasonably accurate to play with and not trying to load to the max. Recently did about 450 rounds with this recipe; another 500 rounds of brass (various brass man) are working through prep on the bench. |
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You will find a lot of people loading around 24.5 gr for the 55gr bullets and it seems to do well for many of them. I use this load for accuracy with Nosler 55gr BT and Sierra 52 gr SMKs. Sierra list the Max charge for TAC at 26.3 gr and there is some 5.56 data floating around somewhere from Ramshot that goes even higher, but work up your loads in your guns
Sierra data here. |
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Geez!
#1 Consult the Ramshot web site for starters. #2 Cross reference with good reloading manuals. #3 Reduce the load 10 percent and work up in 0.3gr increments looking for accuracy, reliability, and above all safety. Reloading is not rocket science, but one needs to be about work up a load properly. Trolling for loads is not a prudent idea! |
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Quoted: Geez! #1 Consult the Ramshot web site for starters. #2 Cross reference with good reloading manuals. #3 Reduce the load 10 percent and work up in 0.3gr increments looking for accuracy, reliability, and above all safety. Reloading is not rocket science, but one needs to be about work up a load properly. Trolling for loads is not a prudent idea! It has been a while since I have spent much time in this forum because of the load trolling, and basic ignorance which is shown by otherwise well meaning and enthusiastic shooters. I am glad to see a post of this nature, including the above posters who have done there utmost to inform, without bashing the OP. Well done. |
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