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

[LRRPF52]

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.

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 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

I’m not a fan of the mislabel “expert”. The moment someone stops learning and proclaims expert status, the more I am suspicious of their statements.

General shooters have been shooting Lapua brass since the introduction of 6.5 Grendel, because that’s the only brass that existed at the time.

We can’t and shouldn’t rule out the likelihood of chambers that are not cut correctly, especially in the post-2020 era of mass retirement of competent engineers, the cultural acceptance of laziness and excuse tolerance, compacted with supply chain issues.

Sourcing reamers has been very difficult across the industry in many cartridges, which promotes allowances in drops in Toal Quality Management.

There are also many companies who make assumptions about how to cut a chamber and the feeding cone, without having conducted fleet rifle pyramid testing.

They know they can throw barrels out the door due to demand.

There simply isn’t enough pressure being generated to cause this type of failure in a SAAMI spec chamber with proper cartridge support, assuming the cartridge was in battery.

Since Lapua brass is very prominent in the market, it is very presumptive to look there as the failure node.

In every one of the instances you’re referencing over the past year, what barrels were involved? What type of feed cone did they have?