6.5 x .300 Weatherby Magnum reloading issue

[Oh Mah]

I'm hoping someone can tell me what i need to do.

I'm trying to reload my once fired 6.5 300 Weatherby brass and before i run them all i want to be sure it will chamber first.i have shimmed under the brass to get it up as high as i can so close that the step inside the die touches the belted shoulder and it still wont chamber.

Could this factory loaded ammo from Weatherby be so hot it needs annealed after 1 firing?

any suggestions would be welcome,thanks

@str8meat and anyone else that knows these.

[Reidus]

So basically you've ran a fired case all the way into the sizing die as far as it will go and the sized case wont chamber in the rifle?

[Oh Mah]

yes sir

[Reidus]

I use a grinder and take some off the bottom of the die until I get enough shoulder bump. I'd check to make sure the case isn't too long first.

[Oh Mah]

I will go double check everything again.thanks. I'll be right back

[BULLBLASTER]

Any way to find out where the interference is? Will a fired, but unsized case chamber?

[Oh Mah]

Ok Reidus you nailed it.You may have taught me exactly why i always have problems with Weatherby magnums.

i WENT OUT AND CHECKED CASE LENGTH......WOW 15 OVER.

They were fine before i sized them,.002 .003 over the trim length.

I sized another then trimmed to length(trimmed almost .020 off the length) brought it in and chambered smooth as silk.Thank you very much.

I have learned some ammo needs trimmed after sizing.

 

[Reidus]

Good deal. You could sizing one without the expander ball and see if it grows as much. If it helps you can get a Redding type s bushing die and ditch the expander ball.

[Reidus]

Also you may have ran the case in further than you needed to which could cause the case to grow.

[jrebel]

Also you may have ran the case in further than you needed to which could cause the case to grow.

 

I’ve never seen a case grow that much by sizing alone.  Don’t shim under your brass and make sure your die is set up correctly.  Also make sure your lubing enough. 

[Oh Mah]

I started out normal just kissing no cam over.i just did it as i started then measured and it grew a lot.then trimmed and put a bullet in it and fits perfect.

Have to resize these then trim debur then loadem up.ALWAYS LEARNING SOMETHING NEW WITH THESE NEW CHAMBERINGS FROM WEATHERBY.

After i getr these done i'm gonna revisit my .338-378 brass that i could not get to work and see if its the same deal. thanks again everyone.

[b23]

Were you getting any cam over at all or did you have your FL die screwed down only enough to just touch the shell holder?

[Oh Mah]

just touch when started moved more shimmed it all of that still wouldnt go.But Reidus pointed out that they mat be to long.Now i did check them before i started and they were within specks but not after sizing.after sizing as Reidus pointed out they were over by almost .020. so now i got it all figured out.Thanks to Reidus.

[str8meat]

I have to check every case after firing due to over bore of this round. They like to stretch

[Oh Mah]

i agree they stretch but why do they grow so much after sizing?
is that a Weatherby trademark or something?