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Posted On: 3/14/2019
By: Tony Fernandes
A: Tony, there can be many reasons for these types of anomalies in testing results, and we may never be able to know the causes. +P rounds often do not penetrate as deeply as the standard rounds since, due to the higher velocity, the expansion begins earlier which will effect the depth of penetration in the same medium. Many manufacturers take this in consideration, particularly in the weaker calibers and make the higher velocity bullet with a harder core to slow expansion and allow deeper penetration. All of which can seemingly "skew" the comparison and be confusing. The thing to remember is that all bullets of one design may not have the same exact construction, but may be "tweaked" by the mfg so that the bullet performs very well. Because of this, I always advise a customer to enjoy the testing and comparisons, but focus on how well the round YOU choose performs by it's own standards.