I had a partial case head separation using a 1.8oz buffer

[lazyengineer]

Yup. Lapua metallurgy is superior to Hornady’s. People have posted images of sectioned .270 Winchester brass, .338 LM, SAUM, WSM, 5.56, etc. where the thicker cases were assumed to be the higher pressure-tolerant samples, but the opposite was true due to metallurgy.

Companies with lesser strength brass alloy compensate for that with more mass at the web a lot of the time, which can also reduce the case volume.

Concluding that Lapua brass is only worthy of scrap is really one of the most misinformed things I think I’ve seen in a while.

In 6.5 Grendel, Lapua brass is the last to lose primer pocket tightness, for example. I have yet to see a case that will get more loads than Lapua.

This isn’t just true with 6.5 Grendel, but with many other popular cartridges. Here’s an example of a study on .223 brass where the sample sizes were biased against Lapua by a factor of 2-5:

Overconfident statents on the perfection of that brand has seen 3 kabooms now in 12 months. Please stop overstating its safety to a general shooter with a different barrel. As BFT notes, the tolerance stacking has kaboomed. 3 times now in 12 months. People read and value expert opinion such as from yourself. Catastrophic failures we are not seeing posts about regarding other brass brands.

The good news is unlike 300BO kabooms in 5.56, which are barrel obstructions that hit 80,000+ PSI and Grenade, the Lapua kabooms are due to being unsupported, and so normal pressure and no more than 52,000 psi when they rupture and vent past the unsuported thin Lapua web and shallow seem area. Resulting in relatively minor property damage, at least