Quote Originally Posted by angrybear View Post
Get the "one book/one calibre" booklet; "The complete reloading manual for the .22 hornet"

It has all the data from both bullet & powder manufactures for the given calibre rather than a manufacturer book which only gives one opinion.

Sierra say for #1200 .224" 40gn Hornet, lil gun - 9.2gn @2700fps, 10.6gn @2800fps, coal 1.720"

Note the data given above in post #2 is for the Speer bullet (Spire SP 40gn) which is why it says SPR SP (not SIE SP which is Sierra) seems Lord Flashpants can't read manufacturer abbreviation's
Hodgdon's data for lil gun is 12 min 13 max for all bullet weights bar the barnes 30 gr and 53gr (because they are long), so changing to bullets of similar style and weight shouldn't cause too many issues, if a 55gr is still 12-13 then a slightly different shaped 40gr soft point.