I bought a German Schuetzen rifle with 8x46/5 on the bottom side of the barrel. I assumed it was 8.15x46r. When I resized the cases I have for another rifle in new dies by Hornady the case would not fit. I checked the barrel and as best as I can tell it is 308. An 8 mm lead bullet force into the barrel come out .308. Makes for difficult loading and I have to neck size for thirty caliber and full length size for 8x46r. The case neck opens up to .322 after firing but I have to neck size to 30 caliber for correct size bullet. Has anybody else had this problem with a rifle in this caliber?

Many of these rifles, have very long chambers and the neck area of the chamber is where the stop ring goes. For both SR and cylinderical bullets, you can use a longer case to fit the base of the bullet.

I shoot BSed but, the way that I make my cases is to FL size in a 32/40 die w/o the expander. Then drop the case in the chamber and measure the amount that doesn't chamber and shorten the case that much.

In your case, after sizing in a 32/40, as above, measure the ID of the case, if it's larger than .310, size in a 30 cal die with a .310 expander, back about 3/8 or more. Drop it in and shorten as above.

After firing you get about .001 spring back and you should have a .309 ID and thats the size bullet, I would suggest starting with.

When I do mine, I have a 1.94 length case, with a .316 ID.

Frank

I now have an Anshutz K98 in 8.15x46 NORM (normalized) (not off topic yet) in this cartridge, have not done the required dimensions checks yet. So I am very interested in this thread, as concerns bullet dimensions and reasoning for those dimensions. My commentary hotelier will remain associated with the cartridge bullet fit only.

I have read the bullet for this cartridge and application should be bore diameter, is this correct? 

If any responders with experience can break this down simply Id appreciate it. As a CBA member, I'm used to bullets being throat dimensioned, but the scheutzen/extreme accuracy thing I have not experience! If the bullet is bore sized then it must soft enough alloy to bump to seal the groove diameter, correct?

Hypothetically (using the OP's measurements): if the bore is 308 and groove 316, the bullet should be 308 +/- .0005 (determined by empirical test)?

As for the stop band, its oversize as mentioned so that it can stop the bullet SEATING into the case (depth control), correct? Is it typical to find the throat diameter approx the same diameter as stop band?

If that is the case then the stop band is much larger than even the groove as it acts like a heel. Can anybody give some common bullet driving band vs stop band differentials?

Please confirm the logic above, or correct as needed. Im excited to shoot this cartridge.

I will chamber cast, etc to dispel any question as to my actual dimensions but Id prefer not to reinvent the wheel and toss out 100 years of 8.15 shooting data and do it totally wrong from the start!! Thanks in advance

Thanks for all the info fellows. I am supposed to get my sight for this rifle tomorrow and see how it shoots.