7mm PRC Load Data

[neilrypka]

On these forums all the time but never post. I've been reloading my 7 PRC for just over a year now but wanted to start sharing the data that I've been collecting.

I have been bad about collecting environmental data, but shooting in Northern Nevada.

24" Browning X-Bolt w/ Silencerco Omega36

All have been loaded .020 from the lands. Started with Hornandy brass but have moved to Peterson, Federal 215M primers.

Will be updating this as I continue to collect more data.

Please give any suggestions you would recommend.

 

[archangel485]

What are your COALs?

 

[BuFootin]

Thanks for posting the load data. Well done! I'm looking at loading 7mmPRC using 175gn Berger Hybrid Hunter's, 22" barrel CA Mesa fft also suppressed with a SiCo Omega 36M. Your work ups have given me a good place to start.

 

[Carlos88]

On these forums all the time but never post. I've been reloading my 7 PRC for just over a year now but wanted to start sharing the data that I've been collecting.

I have been bad about collecting environmental data, but shooting in Northern Nevada.

24" Browning X-Bolt w/ Silencerco Omega36

All have been loaded .020 from the lands. Started with Hornandy brass but have moved to Peterson, Federal 215M primers.

Will be updating this as I continue to collect more data.

Please give any suggestions you would recommend.

Thank you for posting the information. I just put together a 7mm PRC so the info will certainly help. Well done.

 

[Grauch]

On these forums all the time but never post. I've been reloading my 7 PRC for just over a year now but wanted to start sharing the data that I've been collecting.

I have been bad about collecting environmental data, but shooting in Northern Nevada.

24" Browning X-Bolt w/ Silencerco Omega36

All have been loaded .020 from the lands. Started with Hornandy brass but have moved to Peterson, Federal 215M primers.

Will be updating this as I continue to collect more data.

Please give any suggestions you would recommend.

 

[Grauch]

Thank for the data. I am just starting the reloading rabbit hole. What powder gave you the best groups and velocity?


I shoot a Fierce 22 7MM PRC
1. I uploaded my targets to Chat GP I shot and it not only told me the group size, it analyzed the number of bullets the SD and ES

Also I was able to get AI to show some target results when trying to find the lands worth looking at

 

[Grauch]

I further analyzed your shooting data for your rifle. IT came up with interesting results, and tried to predict nodes based on velocity. I hope you did not mind .

 

[Grauch]

Thanks for posting the load data. Well done! I'm looking at loading 7mmPRC using 175gn Berger Hybrid Hunter's, 22" barrel CA Mesa fft also suppressed with a SiCo Omega 36M. Your work ups have given me a good place to start.

 

[neilrypka]

Here is a updated version. Started adding in temp to my notes as well.

Also the Powders I have landed so far are 67.6 H1000, 70.6 N565, 68 Retumbo, 73.5 N570. The 73.5 gr N570 has been my powder of choice recently.

Someone asked for COAL, I have been going .02 off the lands.

 

[archangel485]

Here is a updated version. Started adding in temp to my notes as well.

Also the Powders I have landed so far are 67.6 H1000, 70.6 N565, 68 Retumbo, 73.5 N570. The 73.5 gr N570 has been my powder of choice recently.

Someone asked for COAL, I have been going .02 off the lands.

I was curious, among your various bullet choices, will any of the cartridges fit in a 3.24" magazine?

 

[Grauch]

in 7 PRC your guess is at good as mine. Lighter weight bullet? 2.8 is the brass max and the 3.4 is the max coal. You could also trim your brass back I would assume. I just got Peterson Brass and as is I had some that were 2.62.

 

[neilrypka]

I was curious, among your various bullet choices, will any of the cartridges fit in a 3.24" magazine?

My COAL is ~3.4", I have them set 2.65" from base to lands

 

[archangel485]

Okay, not quite going to work in a medium action then.