New Idaho Muzzleloader Load Development?

Joined
Dec 14, 2021
Location
Sandpoint, Idaho
Hey Folks,

Now that Idaho's muzzleloader regs have changed, what new loads are you using?

Here are the updated 2024 Idaho Muzzleloader regulations (from https://idfg.idaho.gov/hunt/weapons/muzzleloader )

LEGAL IN MUZZLELOADER-ONLY SEASONS

Any person hunting in a muzzleloader only season, including controlled hunts, must have in their possession a license with a muzzleloader permit validation. During a muzzleloader-only season, it is illegal to pursue or kill a big game animal with any firearm, muzzleloading pistol, or weapon other than a muzzleloading rifle or musket. In addition, the muzzleloading rifle or musket must be:

• Capable of being loaded only from the muzzle.
• Equipped with only open or peep sights. Scopes and any electronics are prohibited, except hunters with a visual disability may apply for a Reasonable Modification Permit to use non - magnifying or up to 4x power scopes. Application available at Fish and Game regional offices, see page 4.
• Loaded only with loose black powder, loose Pyrodex, or other loose synthetic black powder. Pelletized powders are prohibited. • Equipped with a single or double barrel.
• Loaded with a projectile that is within .010 inch of the bore diameter. Sabots are prohibited.
• Loaded with a patched round ball or conical metal or metal alloy projectile with the exception of allowance of accuracy tips and pressure bases.
• Equipped only with a flint, percussion cap or musket cap. 209 primers are prohibited.
• Equipped with an ignition system in which any portion of the cap is exposed when the weapon is cocked and ready to fire.

I use a Knight Ultra-Lite .50 cal.

@sabotloader I am particularly interested in what you recommend. In the past you've recommended Bull Shop LGP .503" x 400 bullets with MMP Ballistic Base Sub-Base on top of 90 grns of ffG 777. Now that Idaho allows metal or metal alloy projectiles including accuracy tips and pressure bases, what is the best load?

Thanks!

-Tim
 
I’d go with the 297/300. I don’t think the tip makes a lot of difference. The 250s are too light in my book for elk.
 
Hey Folks,

Now that Idaho's muzzleloader regs have changed, what new loads are you using?

Here are the updated 2024 Idaho Muzzleloader regulations (from https://idfg.idaho.gov/hunt/weapons/muzzleloader )



I use a Knight Ultra-Lite .50 cal.

@sabotloader I am particularly interested in what you recommend. In the past you've recommended Bull Shop LGP .503" x 400 bullets with MMP Ballistic Base Sub-Base on top of 90 grns of ffG 777. Now that Idaho allows metal or metal alloy projectiles including accuracy tips and pressure bases, what is the best load?

Thanks!

-Tim
I went with the Powerbelt 338gr Platinum Aero tip; it shoots well, but no animal results at this point.
 
Anyone have experience with the bore driver eld-x? Seems as if the thors are popular but why not the hornady? For elk and deer out of a .50 cal. Max distance I would shoot with the powerbelts was 100 yds and it did the job but I would say even 100 was pushing it.
 
Anyone have experience with the bore driver eld-x? Seems as if the thors are popular but why not the hornady? For elk and deer out of a .50 cal. Max distance I would shoot with the powerbelts was 100 yds and it did the job but I would say even 100 was pushing it.
I am going to try them next year; I would have used them this year but could not find them at the time and found the Powerbelts everywhere I went, so I figured I would give them a try first.
 
Anyone have experience with the bore driver eld-x? Seems as if the thors are popular but why not the hornady? For elk and deer out of a .50 cal. Max distance I would shoot with the powerbelts was 100 yds and it did the job but I would say even 100 was pushing it.
I worked up a load with them this year and they are very accurate out of my Knight Ultralight 1:28 twist gun. Easily MOA. Have not shot a critter yet so no idea how they would perform on an Elk. Funny how guys in ID are looking for copper jacketed bullets while I am enjoying enjoying shooting pure lead.
 
I wound up purchasing the Thor 300 grain bullets for my Knight .50 cal Ultra Lite.

How much ffG 777 powder should I start with? 90 grains by volume?
That’s about where I’d start but honestly if I don’t want to mess around on new load development, I sometimes just go straight to 110-115 gr. That’s usually where I end up with 777 and Bh209.
 
Another vote for the 300 grain Thors. I think you will like them.

Question. Can you convert a Knight UL with a 209 ignition to a #11 percussion cap? I am currently shooting 300 grain Thors with 100gV Blackhorn 209 so it would be relatively easy to make the switch to 777 if it is an easy conversion. I am assuming some portion of the cap is somehow exposed in the #11 set-up to be ID legal…

Thanks,

Horniac
 
Another vote for the 300 grain Thors. I think you will like them.

Question. Can you convert a Knight UL with a 209 ignition to a #11 percussion cap? I am currently shooting 300 grain Thors with 100gV Blackhorn 209 so it would be relatively easy to make the switch to 777 if it is an easy conversion. I am assuming some portion of the cap is somehow exposed in the #11 set-up to be ID legal…

Thanks,

Horniac
They sell a kit but it’s like $200
 
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Another vote for the 300 grain Thors. I think you will like them.

Question. Can you convert a Knight UL with a 209 ignition to a #11 percussion cap? I am currently shooting 300 grain Thors with 100gV Blackhorn 209 so it would be relatively easy to make the switch to 777 if it is an easy conversion. I am assuming some portion of the cap is somehow exposed in the #11 set-up to be ID legal…

Thanks,

Horniac
Yes you can. You’ll need to buy the Western Conversion. https://www.muzzleloaders.com/product/premier-western-muzzleloader-conversion-kit/
 
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