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alloy for barrel slugging (Read 4529 times)

is0086s Full Member Offline Bob Ryan Posts: 151 Location: minnesota Joined: Nov 10^th, 2004	alloy for barrel slugging Jan 24^th, 2008 at 7:27pm	Print Post
	I have a 32-40 Clerke striker high wall that won't group for me. I want to slug the barrel, a 32-40, to see what the groove diameter of the barrel is. I have a OO buckshot mould that should make the round balls. My pot is full of 1-25 alloy I use for another 32-40 and a 25-20 SS. Is this alloy too hard for use in slugging a bore? I have pure lead to use but it's a PITA to empty the alloy out and replace it with pure lead

	Bob Ryan
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Quarter_Bore Oldtimer Offline Posts: 817 Location: Joined: Dec 16^th, 2005	Re: alloy for barrel slugging Reply #1 - Jan 24^th, 2008 at 7:37pm	Print Post
	I use 25/1 bullet alloy to slug barrels quite often and have never had a problem. I genarally use a regular bullet so buckshot should be relatively easy to use. I should mention that I only measure the area at the breech since that is the dimension that needs to be met by a good shooting bullet. I don't drive a slug all the way through the barrel.


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westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 11345 Location: Why, out West of course Joined: May 29^th, 2006	Re: alloy for barrel slugging Reply #2 - Jan 24^th, 2008 at 8:18pm	Print Post
	I use pure lead balls to slug barrels. I slug both ends of the barrel to make sure the muzzle is smaller. Sometimes barrels are installed backwards. Ive used 20-1 bullets also. I think lead balls and a wooden dowel is the best and easiest method. Any size lead ball will do. At the muzzle I use a ballpeen hammer to tap the ball in. When it is flat I use a wood dowl to tap it in a couple inch's. It cuts a nice ring of lead. Makes a perfect slug every time. When slugging from the breech I use a wooden dowel. And like quarterbore just go in enough to get a good measurement ahead of the throat. Joe.

	A blind squirrel runs into a tree every once in a while.
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Green_Frog Frequent Elocutionist Offline "It ain't easy being green" ASSRA Life #281 Posts: 3965 Location: Lynchburg, VA Joined: Apr 18^th, 2004	Re: alloy for barrel slugging Reply #3 - Jan 24^th, 2008 at 8:33pm	Print Post
	Most of us probably know someone who is a muzzle loader. I go to my friend who does a lot of shooting with round balls in the front stuffers and cadge a few of the next size over whatever bore diameter I'm interested in measuring. These balls tend to be more or less pure lead which makes driving them through a LOT easier! I favor driving a single ball all the way through the bore when possible to look for tight spots, loose spots, rough spots, taper, etc, etc. This is my favored way to do it, but as with all things, do what works best for you. Regards, Froggie


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J.D.Steele Ex Member	Re: alloy for barrel slugging Reply #4 - Jan 24^th, 2008 at 8:36pm	Print Post
	Also, it might be A Good Thing to drive another slug all the way through the barrel from breech to muzzle, in order to check for tight or loose spots. Since it won't group now, I figure any and all additional info you can learn might eventually lead to a solution or else to a decision that no solution is possible with that particular barrel. Also check barrel crown, case length, barrel shoulder tightness in receiver, forearm pressure on receiver, scope mount screws, drawbolt tension and the usual other accuracy-robbing conditions. If all else fails, consider fire-lapping. JMO. Good luck, Joe


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marlinguy Ex Member Ballards may be weaker, but they sure are neater!	Re: alloy for barrel slugging Reply #5 - Jan 24^th, 2008 at 9:11pm	Print Post
	I slug both chamber end and muzzle end, but I use my homemade slide hammer to slug each end, and then pull them out.

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Redwing Oldtimer Offline Posts: 586 Location: Canton Joined: Nov 4^th, 2007	Re: alloy for barrel slugging Reply #6 - Jan 24^th, 2008 at 10:15pm	Print Post
	Hi All !!! For a non-evasive measuring tool, consider “Dental” (no shrinkage) Plaster of Paris!!! Wipe the surface with a light oil and dab the PoP on (with a tooth pick) the area you want to measure.. After you build up enough, leave the toothpick in the puddle to use as a handle to remove it when it dry’s… Dry's quick and lift's right out... Easy to measure inside areas like groove's and angle's and easy to clean up with water... Redwing~


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boats Frequent Elocutionist Offline Posts: 7494 Location: Virginia Joined: Apr 23^rd, 2004	Re: alloy for barrel slugging Reply #7 - Jan 25^th, 2008 at 7:16am	Print Post
	To push the slug all the way through I use an old surplus .30 machine gun ramrod. About .25 . I bush the rod out with rings of masking tape in order to make sure it does not come in contact with the barrel, Pure lead balls work best, you can buy they ready made if none on hand. Boats


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irish66 Oldtimer Offline Posts: 533 Location: newbraunfels Joined: Apr 7^th, 2007	Re: alloy for barrel slugging Reply #8 - Jan 25^th, 2008 at 7:18am	Print Post
	go look at the thread on the 8.15 x 46 slug size and use pure lead. irish


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tim_s Oldtimer Offline Posts: 814 Location: 13066 Joined: Oct 11^th, 2006	Re: alloy for barrel slugging Reply #9 - Jan 25^th, 2008 at 12:35pm	Print Post
	Pushing the slug completely through will tell you lots about that barrel. Lube the slug.Go to the hobby shop and get a few lenghts of hardwood dowel, they work great from .22's on up, all for a couple bucks.

	“ I don’t have to be faster than the bear, I just have to be faster than you”
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