Today I tested the .358" 220gr JFP in both the 357 Maximum and 35 Rem. Both guns have a 1:16" twist rate.
5 shots of the 35 Rem averaged 2247fps less than 2ft from the bullet box.
5 shots of the 357 Maximum averaged 1693fps less than 2ft from the bullet box.
The good news: This bullet appears to perform ideally in the 35 Rem. Expansion is .690" - .730" and the bullets penetrated 11" of densly packed wet newspaper. Bullet pictures below.
The not so good news: All the bullets shot into 17" of wet newspaper from the 357 Max penetrated all the way through and were lost. The holes in the newspaper were straight and show little if any expansion. This bullet needs more than 1700fps for adequate expansion. More tests are needed to see if the bonded version will expand at a lower velocity.
