the current varmint hunter magazine has an article re above using a product called dyna bore coat sold by dyna-coatings group. this stuff is a "solution of very fine ceramic particles in a quick-drying glue". ceramic materials , as i understand, can be extremely hard...knives are made of it. i've not seen anything about this product. i do have some vamrint guns whose throats are showing some cracking and wear(borescoped). the website describes the product and it sounds really good. who has used it? any hands on experience? cost is listed as $45. i might try it on a friends pretty shot out 22-250 which is waiting on a new barrel. thanks for any feedback.
too good to be true? throat "rejuvenating"
- Thread starter lpreddick
- Start date
watercam
Silver $$ Contributor
Sounds like the ceramic bore coating that Otis was marketing for a short time. Was supposed to fill in voids, cracks, etc. in the bore by coating bullets and firing them through the bore while the heat and pressure pressed the material into the crevices and then it cured there.
Never did hear of anyone trying it, I might with a shot out barrel just to see...
Here is the link to the web site:
http://www.dynamicfinishes.com/companies/dynatek-coatings/ultra-bore-coat/
They are calling it a coating to make the barrel easier to clean and foul less. They say testing was done on .30 cal. machine guns and 50 BMG rifles.
Never did hear of anyone trying it, I might with a shot out barrel just to see...
Here is the link to the web site:
http://www.dynamicfinishes.com/companies/dynatek-coatings/ultra-bore-coat/
They are calling it a coating to make the barrel easier to clean and foul less. They say testing was done on .30 cal. machine guns and 50 BMG rifles.
watercam said:
Morningn Watercam
Thanks for the link.
Just noticed the .25 microns indicated thickness. Yes, it is .00025 of a millimetre or, for those not fluent with metrication .0000003875 of an inch.
All metal coatings I know of are expressed in full microns units, not such fractions of it.
Think time to learn about nanometrology and wonder?.
R.G.C
I used it in a factory Remington .243 Win barrel to reduce fouling. Seems to work very well for that. The $45 kit will treat several barrels. Accuracy is very good. I plan on treating several more barrels.
I really don't know how well it protects the throats, but cleaning went from soaking in Wipeout overnight to pushing a few patches through it.
I really don't know how well it protects the throats, but cleaning went from soaking in Wipeout overnight to pushing a few patches through it.
i bought the product and coated, per instruction, two barrels, one that copper fouled a lot. the first shot can go anywhere...coated a friend's 22-250 with MANY rounds down the barrel, and the first hole was a foot! from poa. the next three cloverleafed where they were aimed. my copper fouler cleaned of carbon(the powder residue and the baked-on type) very quickly. the first copper cleaning patch was a VERY DARK BLUE, followed by a paler blue, the clear...about 5 patches in all. this gun has never cleaned so quickly. early results with anything can be misleading, so i've coated another barrel to see if the trend continues. the copper came out so fast i didn't feel the drag on the patch usually felt when going over the copper coated area. will probably not have to use any jb or brass brush anymore...will have to wait and see.
a followup: i have now bore coated 7 rifles, 4 factory, 3 custom stainless and have shot them several times. the stainless ones come clean of carbon in 3-5 patches! that includes the baked on carbon that usually requires jb or a bronze brush. two savages, known for their rough bores, came carbon clean in 5-6 patches. the copper comes out with sweet's requiring 4-8 patches. have not used a bronze brush yet! borescoping, with my new LED light source, confirms that the bores are CLEAN! my 6-284 was always a pita to clean even after 1-3 shots. yesterday after 6 shots over the bore coating, the carbon was gone in 4 patches and copper nonexistent! i had to borescope to be sure i wasn't missing something and the bore was clean. this product seems to do as advertised...reduces adherence of powder residue and copper and allows it's removal quickly. a john barsness has written on the use of this product and it's effectiveness. i love shooting multiple guns at one session, but do not enjoy the cleaning. i for one am sold on this product...no, i don't own stock,if it exist.
i forgot to mention the coating was swabbed in the neck portion of the chamber and the carbon ring's removal evaluated...it comes out with a nylon brush, patch and solvent by hand twisting! before, i had to use a drill spinning a brush and solvent with repeated borescoping to be sure the ring was gone. also, i meant brass brush, not bronze..another brain f--t.
the "thickness" of the ceramic particles is .25 MICRONS. this is REALLY small and i doubt it will cause any pressure problems. when you think about it, after firing a few rounds, the bore dia is probably much less just due to the powder residue. the first patch pushed down the bore is always tighter than the ones when the barrel is clean. so we reduce bore dia more by shooting than by applying this coating. the longer it takes to get to clean patches, the more that barrel was "coated" with something...powder residue/copper. since a coated bore cleans with less patches, i deduce that there is less material 'clogging" my bore. have not yet fired 30+ rounds to see if cleaning is as quick as it is when firing 12-15. i bought another kit and will continue to test and learn. later.
lpreddick,
That sound like a reasonable hypothesis to me. I'll have to give it a try.
So with reduced fowling in the barrel, pressures should be slightly lower then, everything being equal. I'll have to order some and try it in some of my small bore guns before i go with a more accurate gun. My 17 would be perfect for this i think. It's a dirty little bugger.
xdeano
That sound like a reasonable hypothesis to me. I'll have to give it a try.
So with reduced fowling in the barrel, pressures should be slightly lower then, everything being equal. I'll have to order some and try it in some of my small bore guns before i go with a more accurate gun. My 17 would be perfect for this i think. It's a dirty little bugger.
xdeano
a long term folllowup: i'v used this product for quite awhile and have noted that cleaning of powder residue and copper is much easier and quicker. i have two new guns and was planing on coating them, so i cleaned to bare metal, so i thought. each gun had over 350 rounds over a 4-5 month period and each was cleaned without use of a bronze brush. after a bronze brush all manner of dark carbon came out and i spent 45+min until patches were clear of carbon. is there any of this "baked on" carbon in my coated guns? i pushed a bronze brush down a "clean" barrel and, yes, there was come carbon residue. not very much but it was there and came out fairly quickly...4-6 passes with the brush. i'v been hesitent to use abraisives or bronze over a coated bore for fear of maybe scratching the "ceramic" coating. i don't think a nylon brush will get this "baked on" stuff out. i could not see any scratches with my borescope so i think it's safe to use bronze. next time i shoot a coated gun, i'll try the bronze after cleaning to see if any carbon remains. brownells now stocks the Dyna Tek bore coating kit.
it has changed! my latest "kit" was used to coat the above bores but cleaning was not so easy...had to use bronze brush to get them clean . the older product would leave a coating in the patch used to coat the bore...i let them dry and they hardened like cardboard. the above patches were soft! i called an 800 number and spoke with someone and i was correct. the formula has changed to a somewhat thinner suspension. i was told that too many users were leaving too much in the throat area and this hardened ceramic stripped copper and resulted in significant copper fouling. i've recoated the above bores with what i hope is enough. darn it!
well, i shot both guns this weekend...i'm not sure about the new "formula". both come clean of powder residue easily, BUT, there remains the "baked on" carbon that comes out only when using a bronze brush and solvent. maybe, just maybe, the baked on stuff came out quicker than before coating, but i was hoping it would not be there as was the case with the old formula. i'm trying to decide whether to recoat or shoot some more and monitor the baked on carbon. i'll try the later and decide on recoating if no improvement. the gentleman at Dyna Tek is mr. doug burch (principal/technical advisor). his number is 1-816-444-1255 ext 110. i may call him to see if they have any of the old stuff in stock. later.
sstkmkrr
Gold $$ Contributor
lipperdick, could you give me the issue number or month and year of the issue that you spoke of in the Varmint Hunter Mag. I would like to try and find that issue to read up on it.
I have two kits coming in from Brownells. But still would appreciate some more information.
Thanks for your time.
Best Regards
Steve Murphy
I have two kits coming in from Brownells. But still would appreciate some more information.
Thanks for your time.
Best Regards
Steve Murphy
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