Hello.
As you regulars already have noticed, i've finished my .416 Taylor these days.
I have used a "Midway" barrel with treads, for Mauser M98 action. A budy of mine did the same thing, but he had a gunsmith to install the barrel for him. When the rifle was finished, and my budy starts to fireform his cases he discover that he has a ring (mark) approx. 2mm behind the shoulder on all his cases!!
He calls the gunsmith, and he told him that he had used a brand new reamer. He had "re-chambered" the barrel after he had fitted the barrel to the action. It looks to me that the reamer are under measure, or the factory reamer are to big.
With my rifle we did'nt rechamber it. We just made it with the shoulder 1,5mm further back.
I started to look in the A-square reloading manual "any shoot you want" and discover there that they operates with the shoulder starting at 2,040"?? (shorter than mine, 2,080")And if i look in the book called "BIG BORE, rifles & cartridges"; they operates with the shoulder starting at 2,120"???? (longer than mine)
My version works fine, BUT what is correct??

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Shoot well, and hit hard.

Arild.

[This message has been edited by 460wby (edited 09-24-2001).]

[This message has been edited by 460wby (edited 09-24-2001).]

Arild,

The midway barrels are not fully chambered, when they are fit, the chamber has to be cut to full depth. The ring on your buddies brass could be from the barrel's pre-chamber being too big, and not cleaning up when the full length chamber was cut.

If you didn't fully cut the chamber on your barrel, and the shoulder was set back, you likely have a one of a kind round.

I just checked Clymer's website, and they list a base-to-shoulder length of 2.120" as well. Like any wildcat, there are going to be variations in the dimensions, but I think the A-Square dimensions are most likely in error.

At any rate you have headspace if you are getting that ring and it is dangerous to shoot....

The cases need to be fireformed, but headspace is the fault of the gunsmith. Such a gun should not have left his shop. the taylor is nothing more than a necked up 338 Win. and the specs are the same except for the neck.

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Ray Atkinson

ray@atkinsonhunting.com
atkinsonhunting.com

I'm sorry, I misunderstood the location of the ring, so please void my first post for the most part....

It appears your reamer didn't clean up the chamber and this may (depending) cause the brass to be overworked during resizing...

If you can find some brass that this ring does not appear on then your OK and it fact the ring may mean nothing if it is smaller...

One option to clean up everything is to go to a larger case and clean up the chamber, the RUM comes to mind....

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Ray Atkinson

ray@atkinsonhunting.com
atkinsonhunting.com

This is why I personally dont like the prechambered barrels. In a case like this one would have to set the barrel back the length of the threads to get things to clean up properly. The prechambered barrels are much like the semi-inletted stocks. You have no control over what has already been done. The 416 Taylor is a neat cartridge. Compact and efficient. Regards, Bill.

In this case it sounds like the problem was not really because the chamber was pre-cut , but the finish reamer used was not compatable with the specs used to pre cut . The earlier experimenters with the Taylor cartridge reported using a fair bit more powder and getting more velocity than what you mostly see nowadays . I think their reamers were cutting a slightly larger chamber . As Arild said , the base to shoulder length was different.

[This message has been edited by sdgunslinger (edited 09-25-2001).]

Thank you for your opinions. My version of the Taylor (416 Hagen.as we call it, thats the name of the buddie of mine that helpt me.)have a perfect headspace, 0,07mm. We headspaced it on the belt, as i belive is correct in this case, and fireformed the cases. I'm satified with the accuracy. It shoots approx. 1" tree shot groups at 100 meters. I shoot a redfox with it yesterday at 110 meters, and there was a big hole in it. I like my rifle and i am very exited of what a moose looks like after a meeting with me when the hunt starts the 5'th october.

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Shoot well, and hit hard.

Arild.

460Wby,

I also full-length resize (headspace on the belt) my brass everytime I reload it. This is a hunting cartridge, not a target shooting cartridge.

BTW, the whole name is 416 Chatfield-Taylor.

Good luck on your moose hunt!

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Brian
The 416 Taylor WebPage!

Aparantly you are a victim of specs, between the US and foriegn reamers or between a well used reamer and a new reamer...Like Bill saz they didn't match, but if your satisfied and it works for you, then your in good shape..However you may get shorted on the number of reloadings you get, at least thats the theory...

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Ray Atkinson

ray@atkinsonhunting.com
atkinsonhunting.com

Atkinson.
I'm agree with you. I will have problems clocking the velocities that the reloading tables tell me, but that means nothing to me. The norwegian moose is'nt that dangerous, and besides; we hope for some food in it to. And this is what i'm most exited about; how the 340 grs Woodleight bullet handles the meat?(in approx.2350 f/s)
When it comes to loads, i simply starts lower and work my way up.

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Shoot well, and hit hard.

Arild.

REGUARDING THE DIFFERENCE IN SHOULDER SPECS. the Big Bore article uses the original specs for the 416 Taylor round. AA totally changed this round when SAMI specing it. 25 degree shoulder vs 32 degree,neck legnth and other changes. It should be called the 416 A Square not Taylor. I still have fun with mine. 2600 fps with 350 Speer bullets.