Srp pressure signs

[4dds]

6.5CM will srp brass show pressure signs differently than lrp? When running a ladder the primer started “flowing?” Up and around the firing pin. First time I have ever seen this. No flattening or ejector marks Anyone seen this?

 

[CBeck]

What type of action? Sounds like you have some slack in the bolt head around the firing pin.

 

[arm017]

Let us know all the details of your set up. And what reloading components.

 

[4dds]

It is a factory Howa 1500 Lapua brass H4350 & H414 ( did it with both) and 130 Nosler RDF

 

[4dds]

This is one of them.

 

[XLR308]

Large firing pin with a generous clearance to the bolt face and small primers.
Get the pin turned and bolt face bushed.

GRE-TAN rifles will fix it for you.

 

[4dds]

Large firing pin with a generous clearance to the bolt face and small primers.
Get the pin turned and bolt face bushed.

GRE-TAN rifles will fix it for you.

I am assuming this will also lead to pierced primers?

 

[Jake the dog]

I had pretty serious catering with LRP. Lapua with SRP did pierce until I swapped into a small pin bolt.

 

[akh223]

Large firing pin with a generous clearance to the bolt face and small primers.
Get the pin turned and bolt face bushed.

GRE-TAN rifles will fix it for you.

Gre-tan did a savage bolt for me, and he does great work.

 

[briang7511]

you could also try some cci primers. they have thicker cups. i do agree about the getting the firing pin bushed but the cci pirmers may help. not sure what brand you are using.

 

[XLR308]

you could also try some cci primers. they have thicker cups. i do agree about the getting the firing pin bushed but the cci pirmers may help. not sure what brand you are using.

To add to that a little tech data, I've had this for years and shared it numerous times.
A good quick reference for the seasoned or new reloader.

 

[Jake the dog]

Any info on CCI#41?

 

[XLR308]

Any info on CCI#41?

Same dimensions and mixture as the 450 I think the only difference is the distance to the anvil which would make it more resistant to slam fire due to floating firing pins.

 

[MangoFett]

I saw the same thing in my 700 with SRP alpha brass/gmm primers and honestly I just ran it. From what I've seen a primer flattening happens before it flows so just go by the flattening of the primer. I've measured my brass for expansion around the case head/webbing too but I think primer shape is about the easiest and first sign you see.

I'm not a guru by any means but that's my two cents.