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I can't tell what load youre looking at, but the only one close in both is the tuprw12 23 vs. 29 ish steel powder.

Both those loads are lower pressure loads and look totally safe. Looks to me the 29.5gr one just gets the payload moving out of the hull then has enough powder to produce more gas to accelerate load. I don't know what the filler wad xyfe12520 is.. if it is something hard and incompressable, vs a felt, that can spike pressure 1500 psi. I've posted a ton of times how taking up the existing expansion volume with incompressable wads will cause much higher pressure increases than most expect. Not sure what that wad is, but might be issue.
 
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