rwagner24 Posted April 17, 2015 Share Posted April 17, 2015 I just used the last of my berrys plated bullets and decided to give bayou bullets a try. I couldn't find a bad review anywhere so I ordered 4000. I have a open xdm 9mm and a limited xdm. I could shoot over 200 rounds through my open gun with the berrys before my cmore lense needed cleaning. I went to a falling steel match last weekend and could barley see through my lense at the end of a stage. I had some berrys with so I cleaned the lense and shot 3.5 stages and could see right through. My comp, blast sheild and cmore were covered with what looked like black spray paint. I had to use lime away to get it off my lense and a die grinder with a scotch brite pad to get it off my carver sight mount. 115gn bullet, power pistol powder 1200fps. Limited gun seemed normal. Anyone else see this before? Link to comment Share on other sites More sharing options...
Aircooled6racer Posted April 17, 2015 Share Posted April 17, 2015 Hello: Wrong powder for an open gun. Thanks, Eric Link to comment Share on other sites More sharing options...
superdude Posted April 17, 2015 Share Posted April 17, 2015 (edited) Hello: Wrong powder for an open gun. Thanks, Eric Why is it the wrong powder? Please explain why or it's impossible to understand why you made that comment, and this is a forum where people want to learn. It is simply because it made the lens dirty, or some other reason(s)? Edited April 17, 2015 by superdude Link to comment Share on other sites More sharing options...
rwagner24 Posted April 17, 2015 Author Share Posted April 17, 2015 I was thinking the same thing. This gun runs great just really dirty with bayou bullets. Just wondering if anyone experienced this too. Link to comment Share on other sites More sharing options...
Glk21C Posted April 17, 2015 Share Posted April 17, 2015 Alliant blue dot would be a better choice for an open gun than power Pistol if you use Alliant powdwrs. Generally slower burning powders, which can produce more gas to work the comp, are used in open guns. Link to comment Share on other sites More sharing options...
gng4life Posted April 17, 2015 Share Posted April 17, 2015 The powder has a lot to do with it. The more common 9Major powders are HS6, AutoComp, Silhouette, True Blue, 3N37, 3N38, N350. You could get away with Power Pistol but it likes heavy bullets with 9 and not the light ones. Do you have the latest coating from Bayou? How long ago did you order it? I have shot some through my open gun and my only complaint was the smoke but that was the old formula. Link to comment Share on other sites More sharing options...
RaylanGivens Posted April 17, 2015 Share Posted April 17, 2015 The powder has a lot to do with it. The more common 9Major powders are HS6, AutoComp, Silhouette, True Blue, 3N37, 3N38, N350. You could get away with Power Pistol but it likes heavy bullets with 9 and not the light ones. Do you have the latest coating from Bayou? How long ago did you order it? I have shot some through my open gun and my only complaint was the smoke but that was the old formula. When did the formulas change? Link to comment Share on other sites More sharing options...
gng4life Posted April 17, 2015 Share Posted April 17, 2015 Not exactly sure but I believe in the last year or so. I still have 4-500 of the 135 of the old formula but never used them up since they didn't run like I wanted them in Open. I will eventually load them up for some minor loads. Link to comment Share on other sites More sharing options...
rwagner24 Posted April 17, 2015 Author Share Posted April 17, 2015 Just bought them this year. Link to comment Share on other sites More sharing options...
Aircooled6racer Posted April 17, 2015 Share Posted April 17, 2015 Hello: You want a slow burning powder for an open gun that creates lots of gas. There is lots of info on here about 9mm open powders to use. The search function is your friend. Makes good reading and is less filling. Thanks, Eric Link to comment Share on other sites More sharing options...
superdude Posted April 17, 2015 Share Posted April 17, 2015 Hello: You want a slow burning powder for an open gun that creates lots of gas. There is lots of info on here about 9mm open powders to use. The search function is your friend. Makes good reading and is less filling. Thanks, Eric It often requires more Power Pistol to make major than it does AutoComp, and AC is popular. For example, in my 38 Super and 115 grain bullets it requires 8.0 gr of PP but only 7.6 gr of AC for the same power factor. Link to comment Share on other sites More sharing options...
gng4life Posted April 17, 2015 Share Posted April 17, 2015 Hello: You want a slow burning powder for an open gun that creates lots of gas. There is lots of info on here about 9mm open powders to use. The search function is your friend. Makes good reading and is less filling. Thanks, Eric It often requires more Power Pistol to make major than it does AutoComp, and AC is popular. For example, in my 38 Super and 115 grain bullets it requires 8.0 gr of PP but only 7.6 gr of AC for the same power factor. You can't go by weight alone, there are many more factors in the equation and PP is just not a good powder when you start pushing it up that high. I tried it with 124s getting to 170 PF and it was horrible and had some serious pressure signs. I backed off and used 147 for a while since I had a ton of them and it was okay. Several other guys I talked to said the same thing when I was working up that load. PP is also very flashy and loud, almost like LongShot but not as bad. Longshot is a decent powder but really dirty and loud. You can make Major with it with 124s but it also suffers from a serious point of "diminishing returns" so you can only push it so far. Link to comment Share on other sites More sharing options...
scottlep Posted April 17, 2015 Share Posted April 17, 2015 I don't think the question is about what powder to use. I think he is asking why might this load be so dirty out of his open gun and making his lens so dirty but a similar load out of a non-open/non-compensated gun seems to be rather clean. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
rwagner24 Posted April 17, 2015 Author Share Posted April 17, 2015 Exactly Im not looking for what everyone thinks is the best open gun setup to run. I just want to know why these bullets are so dirty with the exact same load. Link to comment Share on other sites More sharing options...
Aircooled6racer Posted April 17, 2015 Share Posted April 17, 2015 Hello: The powder is too fast for that bullet. That is a hot burning powder at 1200 fps and you are burning the coating off. Use slower burning powder and you will see the difference. Give Donny a call and see what Kay is using for powder since she is using the same bullets in her open pistol. Thanks, Eric Link to comment Share on other sites More sharing options...
afoulk Posted April 17, 2015 Share Posted April 17, 2015 I made a similar change in revolver using power pistol. I'd imagine mileage varies a bit with the open gun. Hope this helps anyway. I switched from 158 grain berrys in .38 specials to a 160 grain Bayou in a .38 Short Colt case (roughly 9mm dimension). When I made the switch, Power Pistol got dirtier and changed the type of fouling it left behind. It seemed like unburned powder started accumulating where it hadn't before. Prior to that, the fouling was almost all bronze/black that stuck in a very thin layer to the cylinder of the gun. It was coming from the flash at the barrel cylinder gap. (this could be similar to what comes out of your comp) It was hard to get off, but was benign to the function of the gun. The outside of the gun was much dirtier than the inside. You should see a reasonable jump in velocity with the Bayous with the same powder charge. You can probably reduce your powder charge by a couple tenths and get the same velocity. It may get cleaner with the reduced charge, too. Hoppe's 9 and a little time to soften it up cleans up the fouling well. Link to comment Share on other sites More sharing options...
gng4life Posted April 17, 2015 Share Posted April 17, 2015 I don't think the question is about what powder to use. I think he is asking why might this load be so dirty out of his open gun and making his lens so dirty but a similar load out of a non-open/non-compensated gun seems to be rather clean. Sent from my iPhone using Tapatalk Actually it is. The powder is a huge factor with lead/coated bullets. And a lot of the build up is due to powder. Link to comment Share on other sites More sharing options...
rwagner24 Posted April 18, 2015 Author Share Posted April 18, 2015 That makes sense. It definitely seems like melted coating. These bullets are about 60 fps faster. Glad to hear this has happened to others. Link to comment Share on other sites More sharing options...
EkuJustice Posted April 18, 2015 Share Posted April 18, 2015 Ya. Powder makes a big difference and not all powders work well with all bullets. Ever see titegroup with a fmj or even worse a lead bullet how bad it smokes. I would try a different powder and see how it goes Link to comment Share on other sites More sharing options...
rwagner24 Posted April 18, 2015 Author Share Posted April 18, 2015 I think I'm just going to shoot the 3500 I have left through my limited gun and switch back to plated. Link to comment Share on other sites More sharing options...
EkuJustice Posted April 18, 2015 Share Posted April 18, 2015 I'll agree with aircooled6racer. There are a lot better powders out there for an open gun. Autocomp, and HS6 are the most common and the CFE works well too and is almost identical to autocomp. Slow powder is the way to go. Link to comment Share on other sites More sharing options...
splashdown Posted April 18, 2015 Share Posted April 18, 2015 Hello: The powder is too fast for that bullet. That is a hot burning powder at 1200 fps and you are burning the coating off. Use slower burning powder and you will see the difference. Give Donny a call and see what Kay is using for powder since she is using the same bullets in her open pistol. Thanks, Eric This is what I was thinking. Power Pistol burns very hot in my experience. I used it in my .40 open gun. It is probably vaporizing the coating off the bayou bullets. You generally don't want to run moly/poly coated bullets or exposed lead base bullets in Open division. Link to comment Share on other sites More sharing options...
blueeyedme Posted April 18, 2015 Share Posted April 18, 2015 Hmm...love Bayou Bullets but it would never occur to me to use them in my open blaster. Link to comment Share on other sites More sharing options...
Garmil Posted April 18, 2015 Share Posted April 18, 2015 From reading the op posts it sounds like he only loading to 138 pf in the open gun. And using the same load in the limited. Why would that load burn be so hot it burns the coating off in the open gun and be fine in the limited? Link to comment Share on other sites More sharing options...
EkuJustice Posted April 18, 2015 Share Posted April 18, 2015 In limited there is no dot to get crud all over so so it could be just as dirty Link to comment Share on other sites More sharing options...
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