FightFireJay Posted April 21, 2016 Share Posted April 21, 2016 Hodgdon just released the data on their newest powder, "Winchester 572". Velocities for many loads using .355 bullets are very high, including .380 ACP, 9mmx19, and .357 Sig. In fact, Hodgdon lists Winchester 572 in 9mm as being the... - 2nd fastest in 115gr (just behind HS-6, 140 PF) - Fastest 124gr Berry's bullet (150 PF) - 2nd fastest in 125 gr HAP (just behind CFE Pistol) - Fastest 130 gr Berry's bullet (147 PF) So it looks like 572 may be a valid option for reaching major PF with relatively safe pressures. However, most of the loads show a smaller charge compared to HS-6, so it likely has less gas volume to operate the comps. Thoughts? http://www.wwpowder.com/shotgun.html (in stock at MidsSouthShootersSupply) Link to comment Share on other sites More sharing options...
Miranda Posted April 21, 2016 Share Posted April 21, 2016 sure looks promising. now to see if I can get it locally miranda Link to comment Share on other sites More sharing options...
earthshine402 Posted April 21, 2016 Share Posted April 21, 2016 I ordered a pound of this stuff to try out in 38SC - some chatter on the interwebs says it might be sort of a replacement for 4756, I figured it was worth checking out. Link to comment Share on other sites More sharing options...
mrsig03 Posted April 21, 2016 Share Posted April 21, 2016 Please report back with thoughts. Be interesting to find out how it shoots. Link to comment Share on other sites More sharing options...
lcs Posted April 21, 2016 Share Posted April 21, 2016 Would be nice if they listed it on their burn rate chart. Link to comment Share on other sites More sharing options...
Bamboo Posted April 21, 2016 Share Posted April 21, 2016 (edited) I read the same chatter about it being somewhat of a replacement for SR4756. SR4756 was a top 3 favorite powder for me in 38super - the only real down side to it was that it was bulky and filled the 38 super case, and it was getting expensive. Lots of unknowns about it at the moment and I'm not sure what its bulk density is, what region it occupies in the burn charts, etc. Comparing data on the mfg's webpage it seems like it is faster than SR4756, also it is a ball powder (just noticed that on the label) and not a flake...but ??? If i see it locally (for a reasonable price) I'll buy a pound just to check it out. Edited April 21, 2016 by Bamboo Link to comment Share on other sites More sharing options...
Powder Finger Posted April 21, 2016 Share Posted April 21, 2016 circle complete 540, 571..................now 572 sounds close to old 540 so 541 will be like old super lite? Link to comment Share on other sites More sharing options...
Bamboo Posted April 21, 2016 Share Posted April 21, 2016 ^^^^ That is along the lines of what I was thinking. Win 572 may have more in common with Win 540 (a.k.a. HS-6) than SR4756. Link to comment Share on other sites More sharing options...
open17 Posted April 23, 2016 Share Posted April 23, 2016 Looking forward to giving it a try as soon as I can find some locally. Hoping it's closer to the old 571/HS7---and I've seen a few references on other sites stating it may be a bit slower than HS7. That gets it into 3N38/N105 country, with a denser powder. Link to comment Share on other sites More sharing options...
wstrickl Posted April 25, 2016 Share Posted April 25, 2016 I'm more interested in if it works well in .40 and .45acp Sent from my RCT6773W22B using Tapatalk Link to comment Share on other sites More sharing options...
open17 Posted June 2, 2016 Share Posted June 2, 2016 Finally got my hands on a couple of pounds of 572. I'll get some major 9 test loads ready tomorrow and chrono them Saturday. So far---it's not as dense as HS6. A full 9mm case of 572 ran 10.8-11 gr. HS6 is around 12.5. I think I'll start around 7.0 with a 124 at 1.180 and see what I get. REALLY hoping it acts like the old HS7. I've heard the burn rate is slower than HS7---- Link to comment Share on other sites More sharing options...
FightFireJay Posted June 2, 2016 Author Share Posted June 2, 2016 I read the same chatter about it being somewhat of a replacement for SR4756. SR4756 was a top 3 favorite powder for me in 38super - the only real down side to it was that it was bulky and filled the 38 super case, and it was getting expensive. Lots of unknowns about it at the moment and I'm not sure what its bulk density is, what region it occupies in the burn charts, etc. Comparing data on the mfg's webpage it seems like it is faster than SR4756, also it is a ball powder (just noticed that on the label) and not a flake...but ??? If i see it locally (for a reasonable price) I'll buy a pound just to check it out. Obviously being a ball powder, it can't exactly duplicate SR4756, a flake powder. But in many calibers and loads, comparing Hodgdon.com load data, it comes very close. It does appear to be a denser powder, so it should fill less of your case, so no compressed charges and less spilled powder. In 38 Super, it seems to act more like CFE Pistol, in .40 S&W it seems to act more like WSF. In 9m, it's performance by weight is nearly equal to SR4756, but with a higher max charge. Anyway, it's an interesting powder for a purely gun geeky perspective, but Chris Hodgdon does state that it's a pseudo replacement for SR4756... (Also in the video Christ talks about the changes in production to Clays/Universal/International, and which powders the IMR Enduron series is meant to clone...) Link to comment Share on other sites More sharing options...
open17 Posted June 5, 2016 Share Posted June 5, 2016 First round of trial loads with 572. Just a dozen of each. Gun is a full size open gun, KKM barrel with two .156 ports, Bedell comp. 1.175 OAL and WSP for all, mixed brass. Bullets are Precision Delta JHP's My regular load is 8.8 HS6 with a 115 gr, runs 172-173 PF 115 gr, 7.5 gr 572, PF 163 124 gr, 7.0 gr 572, PF 155 I'll focus on the 124's for the next round, probably 7.3, 7.5, 7.7. Link to comment Share on other sites More sharing options...
Open1215 Posted June 5, 2016 Share Posted June 5, 2016 How did the 115s feel? Sent from my LGLS991 using Tapatalk Link to comment Share on other sites More sharing options...
open17 Posted June 5, 2016 Share Posted June 5, 2016 How did the 115s feel? Sent from my LGLS991 using Tapatalk Not bad. Only fired 12 (4 sets of 3), but the dot tracked well and it didn't feel quite as snappy as CFE or Autocomp. Probably try 7.8 with the 115's next time around. Link to comment Share on other sites More sharing options...
BlaineD Posted July 10, 2016 Share Posted July 10, 2016 Updates? Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Jimboslice Posted July 10, 2016 Share Posted July 10, 2016 I've just started to use it (used it in a match today) and I really like it for my open gun so far. Gun: full size CK Arms Open Gun w/ 3 small popple holes. 124 MG, 7.3gr 572, PF 173 Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
BlaineD Posted July 11, 2016 Share Posted July 11, 2016 I've just started to use it (used it in a match today) and I really like it for my open gun so far. Gun: full size CK Arms Open Gun w/ 3 small popple holes. 124 MG, 7.3gr 572, PF 173 Sent from my iPhone using Tapatalk Thanks! Keep us up to date. Liking the way this powder is looking for major loads.Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
johnbu Posted July 17, 2016 Share Posted July 17, 2016 At the scholastic shooting sports nationals this weekend they were giving out sample bottles of this. Naturally, I noticed that AFTER buying 8# of WSF. Link to comment Share on other sites More sharing options...
GrumpyOne Posted July 17, 2016 Share Posted July 17, 2016 Looking forward to giving it a try as soon as I can find some locally. Hoping it's closer to the old 571/HS7---and I've seen a few references on other sites stating it may be a bit slower than HS7. That gets it into 3N38/N105 country, with a denser powder. That would be awesome. Link to comment Share on other sites More sharing options...
ironpony Posted July 18, 2016 Share Posted July 18, 2016 I tried the Hogdon recommended 3.8 gr with a 147 hp extreme and it would only cycle G34 a couple times out of 17. Does anyone use this with 147 gr. and I'm aiming for 130 pf ? Should I use a different powder? Link to comment Share on other sites More sharing options...
Steve RA Posted July 18, 2016 Share Posted July 18, 2016 Try using a little more and see how that cycles the gun. Link to comment Share on other sites More sharing options...
ironpony Posted July 19, 2016 Share Posted July 19, 2016 Just FYI, I ran some of the 3.8 gr 572, 147 gr. HP in G19 through the chrony and got stove pipes (4) and average of 805 fps from 10 rnds. I'll bump it up a bit. Thanks. Link to comment Share on other sites More sharing options...
user293 Posted July 20, 2016 Share Posted July 20, 2016 Anyone thinking about trying 572 in 9 major with 115s? Link to comment Share on other sites More sharing options...
ScottieShootz Posted July 22, 2016 Share Posted July 22, 2016 Any new load info on this powder? 115s or 124s? Link to comment Share on other sites More sharing options...
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