Brass quality

[TradLife406]

Has anyone done any large sample testing on different brands of brass? As in noticing that your 20 shot groups are smaller with Lapua style brass vs say Hornady?
Got a ton of Hornady brass. It shoots .30 20 shot mean radian. Wondering if it's worth going to premium brass.


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[bober90]

I’m by no means an expert, but in my experience, I’m able to get more reloads out of premium brass.

I’ve used hornady in my 6.5 creedmoor and it shoots great. But switching to lapua brass I’m already 3 reloads over the hornady brass.

 

[wyosam]

Has anyone done any large sample testing on different brands of brass? As in noticing that your 20 shot groups are smaller with Lapua style brass vs say Hornady?
Got a ton of Hornady brass. It shoots .30 20 shot mean radian. Wondering if it's worth going to premium brass.


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Assuming your ES id doing what you need. I wouldn’t change a thing.


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[DEW0341]

This year Took 50 pieces of Hornady and 50 pieces of ADG. Ran the same powders, primers, bullets. 3x reloads on each over time. Groups were larger with Hornady, pressured out quicker with Hornady. ES/SD worse with Hornady.

Hope that helps. This is 7mm PRC. I’ve also done similar with Hornady and Peterson with 6.5cm. Pretty much sings the same tune.


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[35WhelenAI]

This year Took 50 pieces of Hornady and 50 pieces of ADG. Ran the same powders, primers, bullets. 3x reloads on each over time. Groups were larger with Hornady, pressured out quicker with Hornady. ES/SD worse with Hornady.

Hope that helps. This is 7mm PRC. I’ve also done similar with Hornady and Peterson with 6.5cm. Pretty much sings the same tune.


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Good information. Did you weigh the brass between the two brands before doing the experiment? Weighing before shooting can give a good indication of consistency and another data point to correlate with your shooting results. Inconsistent weights within a specific brand and lot of brass could potentially indicate you would get the results in shooting that you did.

When you say pressured out, is that meaning pressure signs came at lower velocity with one brass versus the other? Or the brass started to get brittle because of multiple firings, i.e. after being exposed to pressure multiple times?

 

[Castle Rock]

I have found all sorts of nasty stuff happening wit Hornady 6.5 CM brass that just doesn’t happen with lapua including pinholes half way down the case body and horizontal cracks half way up the neck after only a few firings, as well as too tight primer pockets that will not accept Fed 210 primers

 

[Castle Rock]

I hadn’t noticed on this case before until I saw it on a screen, but if you look half way up the neck you can see a horizontal crack starting to form like I have experienced wit others