7mm PRC & N570

[Funzy0798]

I guess the reason I'm so curious, is that N570 in GRT doesn't show full burnout in a 22" barrel which concerns me. N565 or N560 seem like they should be better options for consistent burnout. Are you guys loading N570 seeing any signs of incomplete burnout? I feel like ES should indicate that, or maybe shooting in the dark even, but I'm not sure

 

[PRCPharaoh]

I guess the reason I'm so curious, is that N570 in GRT doesn't show full burnout in a 22" barrel which concerns me. N565 or N560 seem like they should be better options for consistent burnout. Are you guys loading N570 seeing any signs of incomplete burnout? I feel like ES should indicate that, or maybe shooting in the dark even, but I'm not sure

I honestly don't know. The two 7 PRCs I use N570 in both have 24" barrels (CVA Cascade and Weatherby Vanguard). However, there are a few guys on here who have been using N570 in their 20" barrels. There are also some posts on Long Range Only.

 

[jjordan355]

I guess the reason I'm so curious, is that N570 in GRT doesn't show full burnout in a 22" barrel which concerns me. N565 or N560 seem like they should be better options for consistent burnout. Are you guys loading N570 seeing any signs of incomplete burnout? I feel like ES should indicate that, or maybe shooting in the dark even, but I'm not sure

I would honestly shoot it, see how it groups and how your ES & SD are and decide then. Who cares how much it burns according to GRT. Go do some real world testing for yourself.

This is my hunting load I have in the pic.

 

[TxLite]

I guess the reason I'm so curious, is that N570 in GRT doesn't show full burnout in a 22" barrel which concerns me. N565 or N560 seem like they should be better options for consistent burnout. Are you guys loading N570 seeing any signs of incomplete burnout? I feel like ES should indicate that, or maybe shooting in the dark even, but I'm not sure

My 18” barrel hovered around mid single digit to low double digit sd’s but I haven’t shot it in a while. Just go shoot it and see what it does in your barrel.

 

[BRTreedogs]

Appreciate this thread, it popped up on the Google when looking for load data.
I couldn't get 180 Hybrids and H1000 to be consistent so I gave up and went to N570 and 195's.

24" oal Benchmark carbon 1-8, DD Enticer Lti
Gunwerks V2 bipod, cheap heavy rear bag
Lands; 2.680 CBTO with Hornady gage and decent pressure
Lands; 2.677 CBTO smoking the bullet nose and no contact
loading .020" off @ 2.660 CBTO with ADG 1x fired brass
SAC fancy sizing/shoulder/neck die, .308 bushing and .003 shoulder bump
.280 polished expander as a mandrel, secondary op


View attachment 964529


pressure at 72gr

View attachment 964530

View attachment 964531

POI overlay of 70 and 70.5
View attachment 964533

helped a guy with his scope and borrowed his garmin; 70.5gr
the low one was 2997
View attachment 964537

will shoot 600 and 1,000 tomorrow, probably 70.2 or .3
pretty happy with the speed, I could feel it at 70.5

EDIT to add
loaded 70.2gr
shot 3 at 600 to dbl check velocity
went to 1,000, took 1 click out after the 1st shot, then shot the rest.
final, 2,990 fps with 195's

View attachment 965108

Hey Bob

This was your 7 Prc
Chambered by Bryan ?

So far mine isn’t loving h1 & 180

Ordered 195s already and considering ordering some n570

 

[wapitibob]

Hey Bob

This was your 7 Prc
Chambered by Bryan ?

So far mine isn’t loving h1 & 180

Ordered 195s already and considering ordering some n570

yes it is

this was late April trying to figure out 15mph wind

 

[BRTreedogs]

yes it is

Thank you.

Hopefully I can get some similar results.

Mines only 20” tube though.