reloading 300 blackout

B

brasscollector

New member
I bought a few uppers as of lately to fill out my collection. Now included in the line-up are 300 blackout and 6.8spc. I see win296, which I have, is one of just a few powders listed on the Hodgdon website. What is, if there is such, the preferred powder for reloading 300 AAC/blackout? Has anyone tried win296 in a 300 blackout? Did it burn clean or foul up the works? I'd be looking to utilize nearly all bullet weights in this versatile chambering.
 
Win 296/H 110 (same powder) is probably the most used supersonic powder for bullets up to 150 grains. Accurate 1680 is probably the most used powder for sub-sonic heavy bullet loads. Some say Lil-Gun is best for 30 cal. bullets heavier than 150 grains for supersonic loads. Just compare all data sources for powders and charges. I shoot Hornady 110 V-max, Nosler 125 BT's, and both 147 FMJ and Hornady 150 FMJ's and use H110 for all and with good results.
 
That sounds good. Looks like I might have finally found a use for 296. I noticed on the heavier end of things Hodgdon recommended H4198 of which I have approx 1/2 pound left. Anyone have experience loading the heavier rounds with H4198? I would gladly try Accurate 1680 but cannot find any locally.
 
296 is a VERY useful powder. : )

anyways try these with H110 or w296 behind barnes 300 ACC 110 tac tx (black tip, not blue) and I promise you will be happy with the results. :)
18.8
19.1
19.4
19.7
20
 
296/110 with 125 works for me too. just beware bullet weight changes require powder changes too. more so than a larger case with slower more typical rifle powders.
.....I blew a case and primer by loading a 147 bullet without adjusting/lowering the powder charge. definitely not bragging just pointing it out. bob
 
yes, tossed the bolt just in case.
....was a grain and a half over max. just pointing out that 296/110 is mostly a mag pistol powder and to watch your loads carefully. bob
 
Thanks for the heads up on 296. I had heard before as well that it's not a powder to be trifled with.

Stag I would like to cook some up as you've outlined. I checked locally and did not find the tac-tx barnes in stock anywhere. I see varying prices online and some places are out of stock. Cheapest was about .56-.57 cents/bullet. Know of any good places to look online?
 
Thanks for the heads up on 296. I had heard before as well that it's not a powder to be trifled with.

Stag I would like to cook some up as you've outlined. I checked locally and did not find the tac-tx barnes in stock anywhere. I see varying prices online and some places are out of stock. Cheapest was about .56-.57 cents/bullet. Know of any good places to look online?
__________________
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As with any load--work your way up conservatively. The 300ACC Tac TX was specifically designed for the 300 BO--it is one of the best designs for a bullet I have ever worked with for that platform--you'll see why when you get them. My go-to sources are usually Midsouth, Precision relaoding and Grafs--sometimes Midway or Brownells. If you can't find them--their 110 tax tx "regular flavor" blue tips work very well with the same formulation--though I believe do not open as well down to lower velocities as the black tip ones do.
 
I've been using Alliant 300MP. Nosler has published data for the .300 using this powder and the 125 Ballistic Tip.
 
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