Ffg equivalents for hunting with prb.

[Big Mountain]

Hey guys, and thank you before you post for your personal experience. i have an in-line muzzleloader with a 1/20 twist rate and have found to my surprise that prb is much more accurate at higher powder loads. I would have thought that it wouldn’t have mattered as much as it does.... here is the question though, what is the equivalent in ffg to 70 to 75 grains of fffg for hunting season this
year?

All I have read online from people is fffg powder charges. Also I have found that 85 to 90 grains of pyrodex rs is the sweet spot for my rifle. Would that be enough. I know that one answer is to just buy fffg black powder or pyrodex p but I am sitting on a few cans of pyrodex rs and was wondering if it would do the job? At least out to 100 yards.

also is it true that real black powder make a real difference in the power behind the shot?

Thanks a ton guys

 

[Carbon 6]

Sorry we can't discuss modern inlines, but Be cautious if using 3fff with a 209 ignition systems. the powder can trickle through the flash hole on some guns.

These guys should be able to help you with your inline woes.
https://www.modernmuzzleloader.com/

 

[Big Mountain]

Sorry we can't discuss modern inlines, but Be cautious if using 3fff with a 209 ignition systems. the powder can trickle through the flash hole on some guns.

These guys should be able to help you with your inline woes.
https://www.modernmuzzleloader.com/

Thanks I’m glad I asked now.

 

[Carbon 6]

Safety is one of the reasons we don't discuss modern inlines here. There are many components, techniques, equipment and practices used for for modern inlines that don't crossover to the traditional guns and vice versa. It can become very confusing and potentially dangerous real quick , especially when some of the names, and terms are the same but aren't .

 

[ppg1949]

Big Mountain, the inline muzzies sister forum of this one is modernmuzzler.com. You can discuss any type of front stuffer there. Good luck

 

[Carbon 6]

Big Mountain, the inline muzzies sister forum of this one is modernmuzzler.com. You can discuss any type of front stuffer there. Good luck

I posted a link for him, guess you missed it.

 

[ppg1949]

I posted a link for him, guess you missed it.

And I thought you were slipping in your old age. Alas, I have posted another senior moment. Oh, the humanity, lol.

 

[Carbon 6]

I'm still one step ahead of the wheelchair.

 

[SDSmlf]

I'm still one step ahead of the wheelchair.

Better stay off the open road if only one step ahead of the wheelchair. Hear they have some kind of new buggy that runs off of a battery that puts a traditional wheelchair to shame. Heard the battery is even rechargeable.

 

[ppg1949]

I'm still one step ahead of the wheelchair.

That’s good to know that they are not going to leave you by the side of the road in Death Race 2000, lol.

 

[mooman76]

I've never noticed a difference between Pyrodex and real Black grain for grain by volume but I have never done a side by side comparison either. If you back off fff by about 5 grain it should be close to ff or at least close enough that if wouldn't make much difference for hunting anyway. You really have to try it and see.

 

[DAKurth1]

Hey guys, and thank you before you post for your personal experience. i have an in-line muzzleloader with a 1/20 twist rate and have found to my surprise that prb is much more accurate at higher powder loads. I would have thought that it wouldn’t have mattered as much as it does.... here is the question though, what is the equivalent in ffg to 70 to 75 grains of fffg for hunting season this
year?

All I have read online from people is fffg powder charges. Also I have found that 85 to 90 grains of pyrodex rs is the sweet spot for my rifle. Would that be enough. I know that one answer is to just buy fffg black powder or pyrodex p but I am sitting on a few cans of pyrodex rs and was wondering if it would do the job? At least out to 100 yards.

also is it true that real black powder make a real difference in the power behind the shot?

Thanks a ton guys

The “rule of thumb” that I have read and use myself, is that you should REDUCE your 3f load by 15% of your 2f load to have approximately the same muzzle velocity.
If your rifle shoots best with 60 grains of 2f, you would start with 50 grains of 3f and work up your exact load from there.

 

[jager43478]

Hey guys, and thank you before you post for your personal experience. i have an in-line muzzleloader with a 1/20 twist rate and have found to my surprise that prb is much more accurate at higher powder loads. I would have thought that it wouldn’t have mattered as much as it does.... here is the question though, what is the equivalent in ffg to 70 to 75 grains of fffg for hunting season this
year?

All I have read online from people is fffg powder charges. Also I have found that 85 to 90 grains of pyrodex rs is the sweet spot for my rifle. Would that be enough. I know that one answer is to just buy fffg black powder or pyrodex p but I am sitting on a few cans of pyrodex rs and was wondering if it would do the job? At least out to 100 yards.

also is it true that real black powder make a real difference in the power behind the shot?

Thanks a ton guys

Probably that amount of grains in a 75 gr of 2fg is equivalent to 80grs of 3ffg

 

[Grenadier1758]

Probably that amount of grains in a 75 gr of 2fg is equivalent to 80grs of 3ffg

3fg is more energetic than 2fg. 75 grains of 2fg would more likely be matched with 65 grains of 3g.

 

[renegadehunter]

Without talking about the type of unmentionable you're using and only about the powder charge...
Are you asking what comparable 2f charge would be ethical to use for deer hunting in relation to a 70g-75g charge of 3f?
I only have experience with a .54 cal, but feel that 70g of 2f is plenty fine for a whitetail deer to 100 yards. I'd think 60g of 2f in a .50 would be fine too as far as ethically dispatching a deer.
If you've already found that it shoots 85g-90g of 2f accurately (pyrodex rs) and are wondering if that will do the job on a deer, then yes, I'd hunt for deer to 100 yards with that charge with confidence. Heck, I'd hunt elk with that charge.

 

[Eterry]

IIRC, Lymans handbook tested fffg vs ffg and fffg was close to 40% higher velocity vs ffg.
According to them a 50gr charge of fffg is equivalent to 70grs of ffg.
That's why a lot of shooters have switched to fffg, to use less powder.

 

[thompson50]