Testing 7mm PRC Brass Small sample size part one.

So, there are a lot of people out there that say this brass gives better results over this brass. So, I decided to do a small sample size test and then go from there. I picked up three new brass offerings in 7mm PRC Hornady, ADG, and Weatherby. The price points on all three differed, with Hornady costing $1.40 per piece, ADG costing $ 1.96 per piece and Weatherby costing $ 2.12 per piece.

I loaded all of them up and shot them each so they would each have three firings. Then we used the same load method to keep everything the same. I did three different charges with weights with N570 powder for six loading per charge. Used Federal 210 Primers along with Hornady ELD-X bullet. Step-by-step process was,

1. Annealing

2. Hornady full-length size with expander ball out

3. Size case month with a Cortina Precision expander mandrel dies and coated expander mandrels .282 size

4. Deburr/Chamfer

5. Hand primed with Frankfordarsenal

6. Throw powder with RCBS Match Master on match mode

7. Seated bullet Hornady adjust seating die and Short action custom Nexus Press.

   
   

   Test rifle was a Kelby Nanook with 26” preferred carbon barrel. 1:8 twist

So, the only difference between the loadings was the case itself. Bullets were loaded .002 off the lands. Primers set .006 below flush. Used to measure velocity using the Garmin Xero C1 Pro Chronograph. Now keep in mind this is a very small sample size. The point was to see if I wanted to dive in deeper. For the results, I decided that it would be worth it and not only that I should be able to push the speed up a little more as I didn’t see any pressure signs. Below is the data I collected. Look at the data and let me know your thoughts! In your opinion, with this testing, is the more expensive brass worth the buy? Looking forward to doing more testing and letting you guys see the results!!

Do you want to see a bigger sample size test?

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