Over the years, the original #22300 R38S12 varied lot to lot from 820-840+ fps from my 1 7/8" 642. According to Remington's site, both from a 4" barrel, they yield:
R38S12/22300 RTP38S12/22301
Muzzle 890 fps 890 fps
50yd 855 fps 872 fps
100yd 823 fps 855 fps
I don't know why they make two such similar loads, unless the HTP load wil replace the Express load. My order arrived yesterday evening. Same Ni case, headstamp, primer & sealant, and bullet, although the bullet mould may be getting old - not a smooth of a LHP. A crude knife test displayed a similarly softer lead than the now unavailable Georgia Arms version.
The older load was $40/50 over two years ago locally - plus s/t. This was $112/3 boxes - not terrible in this time. I needed something to shoot at the range... I have it!
Stainz