Model 10 and +P ammo?
I have an older model 10 and have shot a ton of .38+P ammo in it over the years. It's still tight and shoots very accurately (no problems). Has a 4" barrel. I would assume it is okay to shoot +P in your model 10. If you have any concerns, just practice mostly with .38 Special ammo at the range and load it with +P's for self defense.
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