7mm PRC Load Data from Hawkins Precision

[Unckebob]

Note: I have no relationship to Hawkins Precision except for a part I ordered from them which got me on their mailing list.

If you follow the link, it will take you to some load data they published. I take no personal responsibility for anything they published. You must decide for yourself if they are a trustworthy source.

Reloading for 7 PRC - Hawkins Precision

Reloading 7 PRC - Learn how six different powders work in Hornady's new 7 PRC. Powders include H1000, N565, H4831SC, RL23, and Retumbo.

hawkinsprecision.com

 

[B23]

190's from a 24 inch tube doing mid 3000's with a case capacity that's only around 80gr H20 seems very fast so I'd say well done. That's 28 Nosler territory and the big Nosler case has substantially more case capacity.

 

[sndmn11]

I wonder how many firings @HawkinsPrecision has on that brass now? Isn't there an issue with some PRC and SAUM cartridges getting clicky brass after a few firings?

 

[tak]

I recently called Hawkins about the Hunter magazine in 7PRC (the answer was that it works great btw), but I was asking about the cartridge a little bit and he said he got over 3000 fps from a 22" carbon benchmark with Hornady factory ammo. Just crazy! I'm not normally one to jump on new cartridges, but I think I will with this one.

 

[gabenzeke]

I wonder how many firings @HawkinsPrecision has on that brass now? Isn't there an issue with some PRC and SAUM cartridges getting clicky brass after a few firings?

There are reamers that prevent the clickers.

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[HawkinsPrecision]

I wonder how many firings @HawkinsPrecision has on that brass now? Isn't there an issue with some PRC and SAUM cartridges getting clicky brass after a few firings?

Yes have seen no issues with brass sizing causing a click at the top of the bolt. We have brass with 1-2 firings on it. This test was done with brand new brass. We shot NF ELR with brass with one firing on it. Using TS Customs reamer.

 

[wind gypsy]

Yes have seen no issues with brass sizing causing a click at the top of the bolt. We have brass with 1-2 firings on it. This test was done with brand new brass. We shot NF ELR with brass with one firing on it. Using TS Customs reamer.

I noticed in one of the action review threads @Travis Bertrand mentioned TS chambered the 6.5 PRC and they used a reamer spec'd to address clickers so wouldn't be surprised if they spec'd their reamer similarly for the 7. I saw that TS is also selling custom dies to people who buy 7 PRC builds.

 

[CCooper]

I sure would like to see some data with N568 and N570 with the heavies like a 190 LRHT

 

[Dioni A]

@HawkinsPrecision how many rounds on the barrel when you gathered this data? Had it already sped up or were these new barrel numbers?

 

[HawkinsPrecision]

@HawkinsPrecision how many rounds on the barrel when you gathered this data? Had it already sped up or were these new barrel numbers?

Best guess at the time is about 400 or 500 rounds on the barrel. We shot it at the 2022 Nightforce ELR match before this test.