1679K630 Blue Streak
Black Rock Desert
Bulge formed just below where the forward closure meets the liner. Flight was not a cato but casing is unusable
I added an extra O-ring to the forward closure and used WD-40 Silicone lubricant. The flight was successful however the case had a bulge near the front. The failure appears to be just below where the forward closure meets the liner. The liner is burned away however the O-rings on the forward closure appear intact.