In no particular order.
Your .357 Handi Rifle barrel has nominal bore/groove dimensions of .346/.355. A "true" .358 barrel is nominally .350/.358. You are proposing sending thin walled appropriately sized projectiles down this "inappropriate for chambering" barrel. If one would stuff a true .358 projectile down an inappropriate barrel, things could change in a hurry.
Is your .357 Handi Rifle barrel mounted on a SB2 rifle frame?
You would need to find/order/rent an appropriate pilot for the a removable pilot chamber reamer for a .346" bore diameter, after you bore/drill enough of the old chamber out for the pilot to even find purchase.
I've plinked with the various 358 WSSM's, Gremlin, Hoosier, Grants and various other .30, .35 and .40 rifle cartridges with pistol projectiles before with generally uninspiring results. It is a dandy way to fireform brass though.
If I were going to rechamber a .357 Handi Rifle barrel sitting on a rifle SB2 frame it would likely be for .357 Herrett.
I do seem to remember some data floating around for 150g Remington .358 projectiles in the Hoosier though.
Your .357 Handi Rifle barrel has nominal bore/groove dimensions of .346/.355. A "true" .358 barrel is nominally .350/.358. You are proposing sending thin walled appropriately sized projectiles down this "inappropriate for chambering" barrel. If one would stuff a true .358 projectile down an inappropriate barrel, things could change in a hurry.
Is your .357 Handi Rifle barrel mounted on a SB2 rifle frame?
You would need to find/order/rent an appropriate pilot for the a removable pilot chamber reamer for a .346" bore diameter, after you bore/drill enough of the old chamber out for the pilot to even find purchase.
I've plinked with the various 358 WSSM's, Gremlin, Hoosier, Grants and various other .30, .35 and .40 rifle cartridges with pistol projectiles before with generally uninspiring results. It is a dandy way to fireform brass though.
If I were going to rechamber a .357 Handi Rifle barrel sitting on a rifle SB2 frame it would likely be for .357 Herrett.
I do seem to remember some data floating around for 150g Remington .358 projectiles in the Hoosier though.
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