I'm considering the .38 special +P 158 gr LSWCHP for use in my S & W Model 10 (and possibly my new Ruger SP101 .357 3") for home protection. From everything I've read, it seems that this load is inapprpriate for use in 2" barrels due to insufficient velocity for reliable expansion. (FBI 4 layer denim test failure, etc) In 3" and especially 4" barrels it appears that this load is still very competitive with the more modern offerings like Speer's Gold Dot and Cor-Bon's DPX line in terms of penetration and expansion. Are there any weaknesses or limitations to this load that I've overlooked? It's a hard hitting round with muzzle energy around 280 ft/lbs (Remington and Winchester)and Buffalo Bore offers a very hot version of this round that really caught my eye, especially for use in my Ruger SP101. Thanks to all for any info/guidance.