AVECOL

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Museum of Natural Science, Louisiana State University

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Date: Mon, 27 Jul 1998 17:00:49 +0000
From: Kevin Winker <ffkswAURORA.ALASKA.EDU>
Subject: Auxiliary barrels

Just back from the field. Hope I'm in time to be of some help. From being unable to get in touch with Herrick this spring I assume his business has gone under. The number doesn't work, and information has no listing for MCA Sports. I needed auxiliary barrels in a hurry, so I went with Robinson's Gun & Tackle: 855 Street Road, Southampton, PA 18966. Tel. 215-357-7381. His prices are similar to what Bill Herrick's were. At Mark Robbins' request, Robinson makes the .22 auxiliary barrel with a slightly bent tube to bring the shot out into the middle of the barrel. I haven't used a 12 gauge .22 aux before, but this one does not do as well as my 20 gauge .22 aux (which left the shot coming out of the side, which seemed required for rimfire cartridges, as you know). This may be a consequence of gauge, however. His barrels are superior for unloading; he makes a groove for prying out the shell from the rear. Robinson was just as courteous and fast as Herrick was. I used both .410 and .22 aux barrels that he made on this trip just over and found them to be perfectly suitable, with a lessening of range in the .22 over my previous gun/aux combination.

One thing we should all be aware of (and I meant to send this out over avecol), is that Robinson now seems to be the only easily available commercial source for auxiliary barrels that we know of. And he is getting a lot of business from the museum community - it sounds like it is more than he really wants, since it is a sideline and he doesn't make much on it. If anyone knows of other sources, it would be a good thing to let everyone know and spread our business out so we don't overwhelm the one good one left.

Kevin Winker
University of Alaska Museum 907 Yukon Drive Fairbanks, Alaska

 

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Date: Tue, 28 Jul 1998 11:00:31 -0700
From: "Braden, Gerald" <gbradenCCR.CO.SAN-BERNARDINO.CA.US>
Reply-To: Bulletin Board for Bird Collections and Curators
<AVECOL-Llistserv.lsu.edu>
To: Multiple recipients of list AVECOL-L <AVECOL-Llistserv.lsu.edu>
Subject: aux barrels

Dear Subscribers,

On the issue of aux barrels, I have a supplier, Mr. Michael R. House, an engineer, who operates a small business called TimeRider Technologies out of his home in southern California. He has made .410 and .22 mag inserts for 12 gauge shotguns for us here at the San Bernardino County Museum. But, if you're looking for fast delivery, you're probably out of luck with this supplier. On the plus side, the quality of the aux barrels he makes is outstanding. The barrels are milled from solid core stainless steel. The aux barrels are tapered so they don't get stuck in the 12-gauge barrel. The aux barrels are polished to increase the muzzle velocity, which also improves the reach and accuracy of the shot. The .410 and .22 chambers are tapered so the spent shells can be removed by hand, literally. (He mills a bevel into the .22 mag aux barrel, but I've never had to use it to pry out the spent shell.) Because the .22 mag aux barrel is milled from a solid core, there is no bent tube. Thus, the accuracy is much improved. The .22 mag insert will also shoot .22 caliber mag slugs, although I'm not sure why one would need this option. Because the aux barrel has no riffling, the accuracy is of the slug is poor.

I highly recommend these inserts, even though delivery can take some time. (It took two months to get one aux barrel.) I suspect that part of the delay was because Mike doesn't do this for a living. Another reason for the delay is that Mike is extremely meticulous. He tests each aux barrel at a shooting range to check the shot pattern at specified target distances. If he doesn't like the pattern he throws the insert away and starts over.

I talked with Mike to get his permission to post this email. He suggested that anyone interested should send him an email (MRHouse@CSUPomona.edu). He also said he could make aux barrels for nearly any caliber shell for a 12 gauge, but I would expect a increased delay for aux barrels other than .410 or .22 mag while he re-tools and tests the insert(s). The aux barrels cost us $75.00 apiece. But, I don't know if that's a fixed price. I recommend that anyone contacting Mike should be sure to discuss specifics such as cost, caliber, customization, delivery time, number of aux barrels, etc.

Gerald Braden

 

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We’ve had good luck with aux barrels from Short Lane Arms in Montana:

 

http://www.gunadapters.com

 

 They‚Äôre pretty reasonably priced and ship really quickly. Other folks may be interested in them as well.

 

Matt Carling

Department of Zoology & Physiology

Berry Biodiversity Conservation Center

University of Wyoming