• This Forum is for adults 18 years of age or over. By continuing to use this Forum you are confirming that you are 18 or older. No content shall be viewed by any person under 18 in California.

Primer pocket depth?

I'm new to precision reloading. Here's what Ive found reloading my 6.5PRC. Nosler Brass ALWAYS needed the primer pocket trimmed. I finally got 200 pieces of Lapua and every single pocket was perfect. As others have stated the primer should be lower than flush...just.
Also, measure the pocket depth and the primer thickness. Poor seating can also be your primer seater. I use the Lee bench mounter primer seater and it works much, much better than my RCBS bench mounted.
What is better about the Lee unit ?
 
My Lapua pockets are .126

Its hard to get them to .120 ..at least for me it is.
Ahh ok. I get it now. Like I said, I use .1245” for my Lapua 6BR brass that I use for 6 dasher.
Dave
 
The Alpha 6BR variant brass offerings measure 0.120-0.121” using the Accuracy One pocket gauge made by CTK. The primer pocket depth consistency in Alpha is tighter than I’ve found in any brass I’ve tested.
 
Start with feel and stay with feel, or else measure your primers and sort.
Well the work flow might lead me to that conclusion, we’ll just see when I get a bigger sample size but in the mean time I’m not seeing a downside to a click adjustable primer setting ,followed by taking a measurement and assigning a number.
 
Better yet, for precise crush without having to measure every primer:

Better yet, for precise crush without having to measure every primer:

this seems like a painfully long process and having to manually feed individual primers.
 
this seems like a painfully long process and having to manually feed individual primers.

It's likely the fastest way to get each primer to an exact crush. I can do three a minute, then I am done. It took me more time when I seated to a depth from the base, then measured and sorted, then reseated the shallow ones.

However, as I think about this, I am going to stop explaining this. It is of no advantage to me if anyone else seats primers this way. fact, it's probably a disadvantage for my shooting competitions........ :cool:
 
Last edited:
Why would the brand of brass matter if he told us he uniforms to .120”?? Seems like the correct question might be what primers he is using, right??
Dave
Because Virgin pockets are typically .002 to .004 deeper than .120..it would be tough to uniform, something you can't uniform
 

Upgrades & Donations

This Forum's expenses are primarily paid by member contributions. You can upgrade your Forum membership in seconds. Gold and Silver members get unlimited FREE classifieds for one year. Gold members can upload custom avatars.


Click Upgrade Membership Button ABOVE to get Gold or Silver Status.

You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.


To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.

Forum statistics

Threads
165,796
Messages
2,203,609
Members
79,130
Latest member
Jsawyer09
Back
Top