imr 3031 load data for 45-70

[AJC1]

H-4198 works really well for me with a 405 bullet. Even at the lowest charge of 27 grains after a dozen or so shots there is only a couple of yellow sticks in barrel.

Curious if you're using a magnum primer or not I know some books don't call for it. This cartridge I would think it may help due to the case volume not the powder used. I normally only use mag primers with large cases or ball powder.

 

[troy fairweather]

Curious if you're using a magnum primer or not I know some books don't call for it. This cartridge I would think it may help due to the case volume not the powder used. I normally only use mag primers with large cases or ball powder.

I do use mags some say the cup is no thicker but seem to hold up better. Plus helps id the not loads quick.

 

[ericuda]

I always use std primers and never had trouble with any powder but 3031. H4895, aa5744, trailboss all worked fine with standard primers but those powders weren't loaded as hot

 

[Reeferman]

Curious if you're using a magnum primer or not I know some books don't call for it. This cartridge I would think it may help due to the case volume not the powder used. I normally only use mag primers with large cases or ball powder.

Yes I’m using federal large magnum rifle primer. Many who are much smarter than I on the subject say to use a filler but I just don’t want to risk any issues with this trapdoor.

 

[AJC1]

Yes I’m using federal large magnum rifle primer. Many who are much smarter than I on the subject say to use a filler but I just don’t want to risk any issues with this trapdoor.

I dont use filler but I have considered using a paper disk like they do in black powder to stop powder movement in low density loads like those with pistol powders

 

[Reeferman]

I dont use filler but I have considered using a paper disk like they do in black powder to stop powder movement in low density loads like those with pistol powders

I don’t shoot much smokeless in this trapdoor and when I do I lift muzzle up and slowly bring it down to shoot. Does that help I don’t know but I keep telling myself it does.
I just don’t know who to believe as there are so many saying using a filler of some sort doesn’t hurt and those that warn the barrel will get ringed if one is used.
Seeing as this 138 year old trapdoor has been in my family for about 120 of those years I don’t want to chance it.

 

[AJC1]

I don’t shoot much smokeless in this trapdoor and when I do I lift muzzle up and slowly bring it down to shoot. Does that help I don’t know but I keep telling myself it does.
I just don’t know who to believe as there are so many saying using a filler of some sort doesn’t hurt and those that warn the barrel will get ringed if one is used.
Seeing as this 138 year old trapdoor has been in my family for about 120 of those years I don’t want to chance it.

filler changes the total volume of the internals of the case. That is a fact. So your load pressure needs to take that missing volume into account. The disk would not significantly reduce the volume, but i have never used one and am curious if anyone had....

 

[Reeferman]

filler changes the total volume of the internals of the case. That is a fact. So your load pressure needs to take that missing volume into account. The disk would not significantly reduce the volume, but i have never used one and am curious if anyone had....

To me fillers, wads, disks, fluff etc mean the same thing when talking about using smokeless powder in blackpowder cases. I have been told to use tissue paper, stuffing from toys and all kinds of things. No one can guarantee that ringing of chamber or barrel wouldn’t happen so I decided not to use any for the few smokeless loads that I use instead of blackpowder.

 

[Charlie98]

With the right powder you don't need a filler. If I was to use a filler, it would be a simple tuft of Dacron... no rigid wads or disks.

 

[straight-shooter]

I have a Marlin 1895 22" lever. I'm using IMR 3031 and 395gr cast powder coated bullets. This should give you and idea of a average velocity. I used 44.7gr of IMR 3031 on this one.

 

[peterk1234]

As soon as it gets a bit warmer out I will drag my chrono to the club and post some stats. Thank you for all the info.

 

[AJC1]

As soon as it gets a bit warmer out I will drag my chrono to the club and post some stats. Thank you for all the info.

It should be plenty warm now where are your results.