Gunner343,
Welcome to the forum!
First we need to establish what year your Huntsman barrel was manufactured? I have a 2003 NEF Huntsman with a 24" barrel and 7/8" breech plug. I also have a 2004 NEF Sidekick with a 24" barrel and 7/8" breech plug, and a 2008 H&R Sidekick with a 26" barrel and a 5/8" breech plug. Does your Huntsman barrel have a 5/8", or 7/8" breech plug, a 24" or 26" barrel? If it has a 5/8" breech plug, we know it is newer than a 2004, if it has a 7/8" breech plug, we know it is a 2004 or older. The only year these had 26" barrels with 7/8" breech plugs was 2004.
The Huntsmans newer than 2004 should have a newer Owners Manual with updated information similar to the Sidekicks. If someone has a Huntsman Owners Manual with a newer printing than 2/02, PLEASE post a picture in this thread. You would be safe going by my 2/02 picture of recommended loads, because they were increased in 2004 through the last year of production. The Huntsman rifles were actually discontinued around 2006, but barrels were available through the barrel program up until just a few months ago.
READ THE RED PRINT IN THE PICS IF YOU CAN, THIS SITE REALLY MESSES UP THE CLARITY OF THE PICS BY REDUCING THEIR SIZE SO THEY APPEAR DISTORTEDHere is a picture of my 2003 Huntsman recommended loads, the printing date on the back of the Owners Manual is 2/02. Disregard the .45 caliber information, that barrel unfortunately never made it to production. I would love to have a .45 cal H&R/NEF barrel with a 1:20 twist, I have a Knight and a White with that twist.
Here is a picture of my 2004 & 2008 Sidekick recommended loads, the printing date for both Owners Manuals is 4/04. Keep in mind that the 2004 is a 24" with a 7/8" breech plug, while the 2008 is a 26" with a 5/8" breech plug.