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AYDT Rebore (Read 7268 times)

Gigg Participating Member Offline Posts: 39 Location: Fair Oaks, CA Joined: Feb 9^th, 2007	AYDT Rebore Mar 9^th, 2011 at 12:28am	Print Post
	I have an Aydt rifle that has been rebored to 9mm. The case length seems to be 2.0" and the bore diameter at the breech is .358 but .350 at the muzzle. It looks like 32-40 brass trimmed to 2.0 and fire formed would make the cases. The dilemma is the bullet. My desire is for a tapered stop ring bullet that can be finger seated in the case loaded and fired like the original 8.15X46Rmm. Short of that, I need a .358 bullet mould that I can use my .38/357 dies to seat in the formed case. The barrel twist seems to have some gain but is 1:18.5". Any suggestions for custom mould makers or stock moulds and advice on loading would be most appreciated. Thanks Gigg


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westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 11458 Location: Why, out West of course Joined: May 29^th, 2006	Re: AYDT Rebore Reply #1 - Mar 9^th, 2011 at 1:43am	Print Post
	Interesting problem. I had to read your post a number of times to make sense of it. You state you want to assemble cases by slipping the bullet in the case with your fingers. But then you say you want to seat a tapered bullet with dies. ? .008 is an awful lot of taper in a bore. You really should slug the bore at both ends with a soft lead round ball. The early German target rifles had a long tapered throat. Slight gain twist? It's an old rebore? I'll recommend Steve Brooks for a mold. Send him a Cerrosafe casting of the chamber with the first inch of rifling. Joe.

	A blind squirrel runs into a tree every once in a while.
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westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 11458 Location: Why, out West of course Joined: May 29^th, 2006	Re: AYDT Rebore Reply #2 - Mar 9^th, 2011 at 1:48am	Print Post
	Oh, I see now, you want a bullet to shoot in it while your waiting for a custom mold. Might be able to size .358 pistol bullets down. You can pick those up on ebay anytime. And pretty cheap. Joe.

	A blind squirrel runs into a tree every once in a while.
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ledball Frequent Elocutionist Offline Posts: 1010 Location: syracuse, ohio Joined: Nov 20^th, 2009	Re: AYDT Rebore Reply #3 - Mar 9^th, 2011 at 8:50am	Print Post
	I'm confused,as usual, it seems to me like you really need to take a cerrosafe casting of the chamber and throat and maybe the muzzle. is it possible that one of these figures is groove dia. and the other is bore dia. We need a barrel expert here, I'm trying to figure in my pea brain how a maker could make a barel with 8 thou inch taper. ledbal


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Gigg Participating Member Offline Posts: 39 Location: Fair Oaks, CA Joined: Feb 9^th, 2007	Re: AYDT Rebore Reply #4 - Mar 9^th, 2011 at 2:01pm	Print Post
	Sorry for the confusion. 1. My first choice is a custom stop ring 9mm bullet mould I can hand load. 2. If I can't find someone to make that type of mould, then a rifle bullet in .358 that I can load with my .357 dies. 3. I have cast the chamber, that is how I got the case length. 4. The two bore dimensions are slugged groove depth for both and yes .357-.358 and .350-.351 respectively. The .008+/- difference shocked me too. I know they only shot soft lead bullets but that seems too much. That is why I turned to the forum for help. Thnaks for any ideas Gigg


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38_Cal Frequent Elocutionist Offline Posts: 2247 Location: Montezuma, Iowa Joined: Apr 27^th, 2005	Re: AYDT Rebore Reply #5 - Mar 9^th, 2011 at 2:06pm	Print Post
	I've also got a rifle with about an .008" taper to both land and groove diameters...a Charles Lancaster Smooth Oval Bore stalking rifle. David

	David Kaiser Montezuma, IA
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westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 11458 Location: Why, out West of course Joined: May 29^th, 2006	Re: AYDT Rebore Reply #6 - Mar 9^th, 2011 at 4:34pm	Print Post
	38_Cal wrote on Mar 9^th, 2011 at 2:06pm: I've also got a rifle with about an .008" taper to both land and groove diameters...a Charles Lancaster Smooth Oval Bore stalking rifle. David You lucky dawg! I had a chance to by one once. It was the finest rifle I have ever held in my hands. Didnt have the cash. Joe.

	A blind squirrel runs into a tree every once in a while.
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westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 11458 Location: Why, out West of course Joined: May 29^th, 2006	Re: AYDT Rebore Reply #7 - Mar 9^th, 2011 at 4:36pm	Print Post
	I still recommend Steve Brooks for a mold. Steve is a very nice man and will work with you to come up with the correct bullet. The quality of his molds is well known. (You need to *Login* or *Register* to view media files and links) Joe.

	A blind squirrel runs into a tree every once in a while.
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Gigg Participating Member Offline Posts: 39 Location: Fair Oaks, CA Joined: Feb 9^th, 2007	Re: AYDT Rebore Reply #8 - Mar 10^th, 2011 at 12:41am	Print Post
	Thanks Guys I have sent and e-mail to Steve Brooks. Hoping for a reply. Gigg


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leeyn Ex Member	Re: AYDT Rebore Reply #9 - Mar 10^th, 2011 at 9:10pm	Print Post
	I agree with the second one. You really should slug the bore at both ends with a soft lead round ball. The early German target rifles had a long tapered throat. .... (You need to *Login* or *Register* to view media files and links) (You need to *Login* or *Register* to view media files and links) (You need to *Login* or *Register* to view media files and links)


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Gigg Participating Member Offline Posts: 39 Location: Fair Oaks, CA Joined: Feb 9^th, 2007	Re: AYDT Rebore slugged Reply #10 - Mar 21^st, 2011 at 2:06am	Print Post
	Ok, I drove a .38 wadcutter into the chamber rifleing and one into the muzzle. Breech groove .358, land .351 Muzzle groove .350, land .342 I still get .008 difference. No response yet from the bullet mold maker? I am considering trying to breech seat a Lyman 358315 (.358) but am worried it will be too big as cast in soft lead (choke problem) and won't fit. Maybe sizing to .357? thoughts Gigg


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frnkeore Frequent Elocutionist Offline Posts: 7267 Location: Central Point, OR 97502 Joined: Jun 16^th, 2010	Re: AYDT Rebore Reply #11 - Mar 21^st, 2011 at 4:09am	Print Post
	If you shoot a bullet less than .358, it will gas cut. You have a 'hell-of-a" choke there. If it were me, I would get a 358315 mold, cast it in 30/1, size it in a .359-.360 die with a gas check on it and breech seat it. That mold only has 2 bands and the nose is small so, I think it's your best bet. To just shoot to try it out, you could get the 358311 (160 gr) shoot it BSed as cast. If the 358315 works, have the GC reamed off of it and make it a plain base casting .359-.360. Best bet would be have a lathe bored bullet made with a .360 base band and tapering to .350 at the nose. Cast any bullets in 30/1 or 40/1. Frank

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Gigg Participating Member Offline Posts: 39 Location: Fair Oaks, CA Joined: Feb 9^th, 2007	Re: AYDT Rebore Up date Reply #12 - Mar 21^st, 2011 at 5:14pm	Print Post
	thanks of all the good advice. This is driving me a little batty. After reading the freebore or tapered throat comment I decided to slug the breech end deeper into the rifleing. Low and behold new measurements. Groove Diameter: .352 Land diameter: .346 I guess I have no options but a custom bullet mould or reline the barrel. I just don't know enough to make an intelligent order. The bore twist is 1 in 18.5 but seems progressive. Is there a site that has a "walk you through" the order/design process? Gigg


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38_Cal Frequent Elocutionist Offline Posts: 2247 Location: Montezuma, Iowa Joined: Apr 27^th, 2005	Re: AYDT Rebore Reply #13 - Mar 21^st, 2011 at 5:24pm	Print Post
	(You need to *Login* or *Register* to view media files and links) lets you choose diameter, alloy, bullet type (they don't offer a stop-ring, though) nose shape, number of grooves, weight, nose riding diameter, etc., etc. David

	David Kaiser Montezuma, IA
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westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 11458 Location: Why, out West of course Joined: May 29^th, 2006	Re: AYDT Rebore Reply #14 - Mar 21^st, 2011 at 5:56pm	Print Post
	I find email very frustrating when dealing with some businesses. Might try the telephone. Joe.

	A blind squirrel runs into a tree every once in a while.
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