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Post by J Miller on Apr 14, 2011 14:21:29 GMT -5
2 Dogs,
A question about the lube star on revolver muzzles. I don't have any stainless revolvers and the blued ones don't show the star very well. So do you have a rule of thumb about what kind or type of bullet you've found that carries enough lube to do this? I shoot more standard velocity to moderate velocity .45 Colt rounds than anything else and get little to no leading. But I'm always happy to learn new methods to reduce it even further.
Joe
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Post by 2 Dogs on Apr 14, 2011 17:53:32 GMT -5
Mr Miller, the only reason I showed a stainless gun in the pic was for ease of illustration. My blued revolvers show the same star but for me it would be hard to photograph. Actually my dear soon to be departed when I get my hands on him brother Boge Quinn took that picture.
You really need to measure your sixgun. I have found that a sixgun with less than ideal dimensions will often shoot quite well. However, the question is, are you cheating yourself??
To answer yourspecific question, evencommercial lubes should leave a lube star.
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Post by tek4260 on Apr 14, 2011 21:04:25 GMT -5
My Rugers are in danger now Ordered some lapping compound from Beartooth along with the bolt. Have some plates in hand. I might try to boil the lube off some Hornady swaged 255's I have and use them for the lapping boolits. Light load of Trailboss? Maybe? Hopefully it will work considering I bought #6 of the stuff and have no need for a light load.
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Post by sixshot on Apr 14, 2011 21:20:23 GMT -5
Just a little hijack here but Fermins article on firelapping should be a sticky on every forum out there!
Dick
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Post by 2 Dogs on Apr 14, 2011 22:23:22 GMT -5
tek, you should use UNsized bullets for firelaping not the ones that have already been swaged.
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Post by tek4260 on Apr 14, 2011 22:30:41 GMT -5
The Hornady's are .454 my cast drop at .453. So would the Hornadys be better?
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Post by 2 Dogs on Apr 14, 2011 22:49:27 GMT -5
Yes. I didnt realize they were that diameter. Keep me advised on how it goes. ;D
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edk
.375 Atomic
Posts: 1,153
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Post by edk on Apr 15, 2011 7:39:22 GMT -5
It is pretty easy to understand why shooting bullets that fit throats first and not worrying about bore diameter so long as it is tighter is the way to go. What boggles my mind is when I'm told to use bullets that are 1-2 thou over throat diameter. It seems to me either someone is not properly measuring or one is swaging those bullets as the cartridges are inserted in the cylinder.
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Post by J Miller on Apr 15, 2011 8:32:46 GMT -5
edk,
At the front of the chamber is a angled area called a lead that tapers down to the throat. On some guns this lead is short and abrupt and bullet with long front driving bands may not fully chamber. On most guns this area is longer and those bullets will fit properly.
I routinely shoot .455" to .456" diameter bullets through both my my Uberti Cattleman and OM Ruger. It works fine. Nary a problem. Accuracy is not harmed and there is no leading caused by this. I have to shoot bullets this size from my S&W 25-5 cos of it's over sized throats. Otherwise shooting it is a waste of time and components.
Joe
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Post by tek4260 on Apr 15, 2011 9:27:53 GMT -5
I hate to be a pest about this, but the wheels are turning. The swaged Hornadys have a cross-hatch pattern on them to help hold the lube(I assume) and no lube grooves. Will this hold enough of the lapping compound or would I be better to shoot something with grooves to hold more lapping compound? I am thinking if I use the Hornady, I may run out of lapping compound too soon and simply be leading the rest of the way down the barrel.
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derekr
.30 Stingray
Posts: 353
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Post by derekr on Apr 15, 2011 10:00:06 GMT -5
I am wondering if the soft Hornady bullets you reference would be too soft for the job. Don't you want something harder than pure lead? Those saged Hornadys are awful soft.
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Post by 2 Dogs on Apr 15, 2011 12:35:26 GMT -5
You want your firelapping bullets to be 10-14 bhn.
The reason you want to shoot the biggest bullet that will fit in your throat is because the throat itself may have a bit of taper in it. You dont want gas getting past your bullet. You want your bullet to seal the throat!
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Post by tek4260 on Apr 15, 2011 15:26:42 GMT -5
All the more reason to use the soft, concave based Hornady bullets!
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Post by 2 Dogs on Apr 15, 2011 17:20:21 GMT -5
Ok, if you are following this, note that I rechecked my notes and modified my post #26.
Tek, you're a bit of a hardhead, but I like that. So, dont start whining on me. Be advised, your dead soft Hornady bullets may in fact be TOO soft to have the "spring back" action firelapping bullets need to be effective. But you use them if you want to! I dont know how hard they are, but I have plainly answered your question I think.
BTW, you had Beartooth on the line? Did you get a Beartooth Bullets Technical Guide while you were at it??? Mr. Stanton will also sell you some firelap bullets!
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Post by hoover on Apr 16, 2011 10:10:20 GMT -5
Not to stir the lead pot, but you don't want spring back in your lapping bullets. A soft bullet will size down on the high spot, and stay that size, negating the cutting action for the rest of the barrel. We only want to lapp out the high spot. A perfect barrel for cast bullet shooting will be tappered, getting slightly smaller towards the bore, for better bullet purchase. As your impregnated lapping bullet looses its lapping compound, the cutting action is reduced, giving the desired effect we want.
Remember, we only want air gun speed for the lapping load, also. Just make sure the lapping load clears your barrel, at each shot. If you're going to firelap, the "Beartooth Bullet" Tech guide is a small investment, and full of info., too much to explain in a thread.
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