300 PRC

[Jscb1b]

I have the same aw2 chamber. Hodgdon lists 75.7 as max.

 

[Emerson0311]

Anyone run 230otm and h1000?

Just loaded up some with V570, but H1000 is an option too. Curious about the responses.

 

[Jscb1b]

This is 75.5gn H1000. There is no heavy bolt lift.

 

[Jscb1b]

I'm going to go up to 76gn in .1gn incerments.

 

[375fan]

I'm going to go up to 76gn in .1gn incerments.

I don't know anything about the AW2 chamber you mention. My 300prc is the standard chamber. FWIW , I use N565 in my with 230 A-TIPs. In initial testing I did try using with the 230 A-tip and was up to 79gr of H1000 with no issue. Never tried that 230otm your using.

 

[Jscb1b]

If you get "clickers" when opening your bolt, the sammi chamber is too tight. The Alex Wheeler 2 "AW2" reamer opens the back of your chamber a couple of thousands of an inch. This is to give more clearance for extraction.

 

[375fan]

If you get "clickers" when opening your bolt, the sammi chamber is too tight. The Alex Wheeler 2 "AW2" reamer opens the back of your chamber a couple of thousands of an inch. This is to give more clearance for extraction.

Thank you for the explanation.

 

[Jscb1b]

Thank you for the explanation.

Google Alex Wheeler. He has a gunsmith shop. He has good videos out. It is really worth the time to check him out.

 

[Kino]

Did a velocity ladder test today, 75.6, 75.8, 76 and 76.2 was all within FPS!!!!! The second charge was 5fps slower, the other 3 charges was exactly the same speed! Ran the test all the way to 77.6gr and only then ran into a very faint ejector mark, primer still looked fine and bolt opened like everything else.

Zero pressure signs, touching the lands so I'm going to run 76gr and never look back!

 

[Mike Tackleberry]

One of my favorite loads as of now.
Berger 245 LRHT
VV N568 82.5 GR
Lapua Brass with CCI 250
CBTO 3.026 JAM + .020
COAL 3.890
2860 FPS

 

[LongRangeAggie]

One of my favorite loads as of now.
Berger 245 LRHT
VV N568 82.5 GR
Lapua Brass with CCI 250
CBTO 3.026 JAM + .020
COAL 3.890
2860 FPS

Are you single loading these or do you have a Wyatt's box mag?

 

[Mike Tackleberry]

Are you single loading these or do you have a Wyatt's box mag?

Single Feed

 

[Flyperk]

Anyone loading Hornady 212?
I was using V550, 80gr, on a 26” DT barrel and pushing 3025 - 3050. Started seeing just the slightest primer flatting. Groups were .7 but recoil was pretty stiff.

 

[Schw15]

One of my favorite loads as of now.
Berger 245 LRHT
VV N568 82.5 GR
Lapua Brass with CCI 250
CBTO 3.026 JAM + .020
COAL 3.890
2860 FPS

How long of barrel?

 

[XP1K]

What about a 10 twist if a guy was going to stay with the 212-215 bullets ? I've got an old shilen that was pulled off my winmag with 180ish rounds on it. Thought about trying a prc in it after my current winmag is done.

 

[Taylorbok]

What about a 10 twist if a guy was going to stay with the 212-215 bullets ? I've got an old shilen that was pulled off my winmag with 180ish rounds on it. Thought about trying a prc in it after my current winmag is done.

You aren't taking full advantage of the cartridge with those bullets but other than that go hard.