jugulater
07-29-2018, 02:59 PM
I have done a fair amount of research and internet digging to find information about loading the 577/450 with Black Powder, and ive found a lot of useful information and a lot of conflicting information.
lets start with what ive done so far, my first 20 rounds were Cases made from 577 Nitro Express with 70Grn of 2F Goex, 6Grn of Dacron, topped with a .470" 480Grn Boolit cast from a CBE Mould lubed with SPG. These Shot Great from a accuracy standpoint, Fouling stayed soft, and everything cleaned up easily.
So ive got it all worked out there, but i have a lot of questions and other things id like to try, mostly to try to tame down the recoil a bit as the wife has taken a liking to the MkIV and the current loads really push her around.
#1 I only have 20 of converted 577 nitro cases and id like to transition to 24 Gauge Shells for cost reasons, ive converted a few of the 24 Gauge shells and it is immediately obvious that the case volume is much larger. Will this cause a Noticeable difference in Pressure/ Felt recoil if i retain the same 70Grn load and just use more filler? or is it not enough to make a difference?
#2 Im currently using 2F powder if i swap to 1F powder will that allow me to use "less" of a charge and still have the same volume? or at the end of the day is it just the same either way?
#3 How far can i Reduce a BP load with filler? i see some people say 70% of capacity.
Any Data, Information, or Stories are greatly appreciated
Im going to have to buy myself a Mk.II to make up for the Mk.IV my wife has claimed..
lets start with what ive done so far, my first 20 rounds were Cases made from 577 Nitro Express with 70Grn of 2F Goex, 6Grn of Dacron, topped with a .470" 480Grn Boolit cast from a CBE Mould lubed with SPG. These Shot Great from a accuracy standpoint, Fouling stayed soft, and everything cleaned up easily.
So ive got it all worked out there, but i have a lot of questions and other things id like to try, mostly to try to tame down the recoil a bit as the wife has taken a liking to the MkIV and the current loads really push her around.
#1 I only have 20 of converted 577 nitro cases and id like to transition to 24 Gauge Shells for cost reasons, ive converted a few of the 24 Gauge shells and it is immediately obvious that the case volume is much larger. Will this cause a Noticeable difference in Pressure/ Felt recoil if i retain the same 70Grn load and just use more filler? or is it not enough to make a difference?
#2 Im currently using 2F powder if i swap to 1F powder will that allow me to use "less" of a charge and still have the same volume? or at the end of the day is it just the same either way?
#3 How far can i Reduce a BP load with filler? i see some people say 70% of capacity.
Any Data, Information, or Stories are greatly appreciated
Im going to have to buy myself a Mk.II to make up for the Mk.IV my wife has claimed..