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Post by Hank on Jan 26, 2017 19:20:14 GMT -5
Well guys, since I will be shooting Cyclops this Saturday at the 6th Kentucky shoot I decided to clean the barrel and remove the plug for the first time since I finished the monster back in August. I have three empty boxes of bullets and 12 missing from the fourth box so that make Cyclops having 162 shots fired.
First thing I did was run a wet patch down the barrel a few times to let the Montana Extreme soak in for a few minutes., then I cleaned the breech plug in lacquer thinner to remove the white lithium grease I use on the threads. Once I got the plug clean I checked the amount of erosion in the bushing flash hole. When I first built Cyclops I started with a .040 tungsten, carbide, ? bushing that I have made and install in my guns. I checked the bushing hole with my # drills. A # 60 measures .040, it of coarse passed through as this was the original size. A # 59 measures .041 and it also passed through the hole. The # 58 drill measures .042 and it passed through. next is the #57 it measures .043 and it passed through also, now when you go to the next size, a #56 the size jumps to .0465 and that one would not pass through, so after 162 shots on Cyclops my bushing has eroded more the .003 but less than .0065. This really is of no concern to me as long as I'm not getting powder to fall through the vent hole I don't care how big it gets. The bushing also showed no signs of cracking
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Post by deadeye on Jan 26, 2017 19:57:36 GMT -5
good deal,i still have your original plugs in without a bushing,have not checked in a while but I think they started @ .040 & have held right around .042-.043
I will pull those after this fun time shoot & let you know.
Cyclops- would be interesting letting scat hook one of his IV's onto it sometime for a blood pressure check! |
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Post by dennis on Jan 26, 2017 20:01:18 GMT -5
I have seen pictures of your rifle but can't wait to see the one-eyed monster in person. You are getting great bushing performance compared to what I have seen some posts of what others get especially considering the kinds of loads you must be using.
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Post by hillbill on Jan 26, 2017 21:29:03 GMT -5
it will be a fun time saturday! nice and cold with powder to burn!
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Post by joelmoney on Jan 26, 2017 21:54:39 GMT -5
The Worlds Most Powerful Muzzleloader sounds like it was designed very well. With ballistics like Cyclops has and ease of maintenance. I can understand the excitement of smokeless muzzleloading. Jeff thank you and all the others here for being pioneers and sharing your knowledge.
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Post by Richard on Jan 26, 2017 22:21:01 GMT -5
The main reason he is getting good wear out the bushings is due to the powder he is shooting. Yes, it is large amounts and producing high velocity with heavy bullets but its the slow burn that is not eroding the bushing.
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Post by doug136 on Jan 27, 2017 9:48:34 GMT -5
Richard I'm just curios are 209s harder on bushings than large rifle primers ? Also if the bushings get ate up by fast burning powder then why is Blackhorn hard on bushings ? It supposably a slow progressive burning smokless powder with additives in it to make it smoke . Unless maybe the additives are hard on bushings ? I'm asking,you guys are way smarter than I.
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Post by Richard on Jan 27, 2017 17:49:14 GMT -5
I don't think one is more destructive than the other? As far as Blackhorn?...............Bestill is the guy to ask on that one.
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Post by Deleted on Jan 27, 2017 18:37:53 GMT -5
Richard I'm just curios are 209s harder on bushings than large rifle primers ? Also if the bushings get ate up by fast burning powder then why is Blackhorn hard on bushings ? It supposably a slow progressive burning smokless powder with additives in it to make it smoke . Unless maybe the additives are hard on bushings ? I'm asking,you guys are way smarter than I. blackhorn is said to have a fast burn rate similar to that of trail boss. It is coated to slow burn rate but I suspect that as the coating burns off, the burn rate accelerates. Thus eroding bushing/vents |
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Post by doug136 on Jan 27, 2017 21:07:35 GMT -5
Thanks guys
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Post by Richard on Jan 27, 2017 21:35:53 GMT -5
Most all bushing wear comes from the powder not the primer. If you check your bushing, it will always feel bigger on the powder side. They sort of wear much in the shape of a trumpet........flared to the powder side.
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