7mm PRC & N570

[wapitibob]

Bore scoped the 7PRC barrel today; 135 shots total, the first 90 w/h1000 and the last 45 with N570. Chamber Chiller after every round fired.

 

[jeetS]

For those less educated...how does it look?

 

[wapitibob]

For those less educated...how does it look?

Not bad but was hoping for less fire cracking.

 

[Huntingdeer000]

Following up as promised. Overall very pleased with both the garmin, N570, Peterson brass, and this c6 barrel. One shot missed on the Garmin (user error??). No pressure signs at 73gr with a velocity average of 2820, a full 200fps faster than my H1000 load. That being said my H1000 load is low, and I was able to hit 2670 today with it by going up a full grain higher than my existing load. Pic of case head below is from the 73gr N570 load.

The group with ADG was 5 shots. The rest are all 3. As a point of reference, the dots are .75”

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Some Awesome info. Just what I was looking for.

 

[Durable Gun]

Not bad but was hoping for less fire cracking.

You figure the n570 did that?

 

[Durable Gun]

Dot is half MOA. No pressure. However, very concerned this load will rot my barrel.

 

[wapitibob]

You figure the n570 did that?

Yea, most of it.
I could measure the lands getting burned away in 10 shots in my stw that was loaded at 81.3 ish.

I pulled the prc and put the stw barrel back on and will use it for range time.

 

[Durable Gun]

Yea, most of it.

Damn! I love the powder but fear its gonna rot my barrel

 

[wapitibob]

Damn! I love the powder but fear its gonna rot my barrel

Buy another barrel, have it chambered by the same guy with the same reamer and put it in the corner.