Peterson 6.5 creedmoor brass life?

[Ejecto_seato6282]

I tried searching the forums first, but came up empty handed. I'm reloading 6.5 creed from peterson large rifle primer brass on the sixth firing. The primer pockets are still tight and I haven't changed my load. I have just started having failure to extract issues. I am new to reloading and didn't expect issues like this. I dropped my rifle (bighorn tl3 with a bartlein barrel) off at the gunsmith who spun it up, and he said it is probably the brass. Rifle/barrel combo have about 800 rounds of these reloads through it without having this issue until recently. Does anyone have any experience with peterson lrp 6.5creed brass until the end of it's life?
Please help

 

[John Glidewell]

Need more info. Load, bullet, how far or are you bumping shoulder, do you anneal etc. If you are running on hotter side you need to run brass though small base die and anneal.

 

[Ejecto_seato6282]

The load is 43.1 grains is winchester 6.5sta-ball federal 210m (running 2820fps) bumping the shoulder back .003 I anneal before every full length sizing. I use redding type s pn:36446 (It doesn't say it is a small base die. ID measures .450 and factory prime 6.5 OD is .465 )

 

[John Glidewell]

You can look on line for a small base die, sometimes called a body die. It is slightly smaller and designed to push the body near the case head back into spec. Running a little hard with heavier brass in a tighter spec chamber allows the brass near the case head to get a bit bigger (expand) and a standard die does not squish it down enough with spring back. Redding makes them.

 

[Ejecto_seato6282]

Thank you for the information, I am going to try to get my hands on one.

 

[TheOfficeT-Rex]

What does your fired brass measure near the case head?

Similarly, what does it measure after a full length sizing?

 

[Supersubes]

I shoot that brass in 6.5 and 6 creed. No issues. Likely your sizer just isn’t returning the base to the proper dimension. Check the measurements that T-Rex mentioned above. Also, a body die is just that, a sizer that sizes the body only. A small base die has a small base, whether or not it’s a FL sizer or a body die(they come either way)

 

[Ejecto_seato6282]

It may have actually just been an extractor issue, apparently bighorn had a recall for them. I'm shooting a club match today, I'll take the measurements and post them if the issue persists. Thank you guys for the input

 

[Rocketmandb]

Likely your sizer just isn’t returning the base to the proper dimension.

I would say it's highly likely to be the case. 5-6 firings is about when I've seen similar when a chamber is a little small. I'm approaching this on the first set of cases with my new 300 PRC.

I had a custom die made for my last 300 PRC, but my smith changed to a more precise CNC, and with the same reamer as my last, it made a smaller chamber by about .001". I'm hoping my last die is going to be okay, but I'm only 5 firings in on my first 50 cases, so the next 50-100 shots will be telling.

 

[Ejecto_seato6282]

No failures to extract out of 70 rounds today. But I did get the head measurements anyways on 5 cases of each fired and loaded by me. The ones I resized were all .468 and the fired cases were all .4685-.469