Lapua 300 WSM brass

[drop_point]

same load in em?

Same powder and bullet at the same speed. I believe the ADG load was 0.2 or so lighter.

 

[rpierce]

thats interesting. if they both had mild loads on their first firing then thats definitely the opposite of what ive seen. i always do a mild load on the first firing, regardless of cartridge, to work harden the primer pockets a bit.

 

[antunRC]

If anyone is interested in how they sort by weight, here is a chart for 600 pieces.
min 241.2gr / max 245.8gr

 

[quest450]

Just got 4 boxes of Lapua 300wsm brass, anybody got an AMP code for new and turned brass ? seems like Lapua neck wall is slightly thinner about a thou thinner than ADG,
My ADG new brass is code is #152 and #138 for 0.013" turned brass
I'm gonna burn few cases eventually but it's just too purty right now.

 

[antunRC]

Pilot #21
Code: 0174 (unfired Lapua case)

I still didn’t fire-form my Lapua brass.

 

[quest450]

Thank you, that number seems high considering my ADG brass is about .001" thicker and I got #152

 

[antunRC]

#174 is unfired Lapua case.
Usually if you analyze brass after first firing that number will be smaller.

 

[antunRC]

So far happy but just scratching the surface.
New barrel, new cartridge for me…

 

[antunRC]

AMP AZTEC Code
Pilot #21
Fired case
Code: 0168 (case 1), 0167 (case 2)

 

[FireMedic]

I just got in 3 boxes of these I purchased from grafs to use in my 7-300wsm.

The brass measures .554 at the solid case head. This will be a no go for my reamers which uses the standard .200 datum dimension of .5563

My adg brass measures .5505 at the base, a full .0035 smaller then lapua

 

[antunRC]

I just got in 3 boxes of these I purchased from grafs to use in my 7-300wsm.

The brass measures .554 at the solid case head. This will be a no go for my reamers which uses the standard .200 datum dimension of .5563

My adg brass measures .5505 at the base, a full .0035 smaller then lapua

My chamber is .5563 so far no problems, and no clickers.

 

[Ranger188]

My chamber is .5563 so far no problems, and no clickers.

What sizing die are you using?

 

[antunRC]

SAC 300WSM

Modular Sizing Die - 300 WSM

Modular Sizing Die for 300 WSM ensures precision with consistent resizing, delivering accurate reloading results for optimal performance in every shot.

shortactioncustoms.com

after firing .200 line is 0.555"
after sizing .200 line is 0.5543"

 

[antunRC]

 

[FireMedic]

SAC 300WSM

Modular Sizing Die - 300 WSM

Modular Sizing Die for 300 WSM ensures precision with consistent resizing, delivering accurate reloading results for optimal performance in every shot.

shortactioncustoms.com

after firing .200 line is 0.555"
after sizing .200 line is 0.5543"

How many firings? The PRC chamberings get clickers with .003 clearance on a virgin case. .005 seems to be the sweet spot.

 

[antunRC]

I'm on my second firing, so I’m not sure if or when the clickers will show up.

 

[rhovee]

Can others that have Lapua brass confirm the .200 line measurement please?

 

[FireMedic]

Can others that have Lapua brass confirm the .200 line measurement please?

New lapua measures .5540 with a


New adg measure .5503

 

[quest450]

 

[antunRC]

If anyone is interested in new Lapua brass with H4831SC as a fireforming load, here is a ladder test I did at 900 yards.
There was no sign of pressure, but make sure you start low if testing in your rifle. My barrel is 31.50" LG