Thread: 577 Super Snider build and chamber reamer size

I'm just about to make a 577 Snider chamber reamer for an upcoming project
And due to @40mm asking about reamers I thought I should get cracking

Vulcan barrels have all the drills, reamers and button to make me the barrels in any twist from 1:25 to 1:50

I have dies and 24 gauge magtech brass and have made one case from this brass through my dies and happy with the results

I have modified a 550 grain 577 minie bullet mold to drop 620 grain flat base bullets

What I'm hoping to get from a couple of forum members ( on loan just to measure ) are some fired and sized 577 cases
I want to look at what the various brands of dies re size to do that I can make my new chamber reamer to cover most or all of the available dies in NZ
Most guys will have Lee dies
I have British made ones that fit in a standard press

Vulcan won't be making these barrels for a few months yet
But I'm getting two
@40mm sounds like he might want one
@Scout is always keen for big bores

Anyone else want a brand new chrome molly or stainless steel 577 barrel for cartridge rifle or muzzleloader ?

I have two frames to barrel ready to go
First is an 1869 Swedish rolling block sporting 16 gauge shotgun frame. These were made from sold out of service 12.7mm rimfire service rifles.
Having been a 16 gauge shotgun the hammer nose is already modified to feed the 16 gauge case so the smaller 577 snider 24 gauge based case is a nice easy fit
Second I might stub and barrel a Baikal 12 gauge single barrel to 577 snider ! Why ? Why not !
And I will be building a stainless steel 577 muzzleloader as well. Totally utilitarian proper hunting ML that hit hard and makes big holes in protein

Standard Snider case should take 100 grains FFG under the 620 grain bullets

That's a 2" snider by the 2 1/2" Magtech patent brass

This is the 1869 frame with a dummy barrel stub in it
Knox will be much shorter and diameter of cutter will be much greater so radius between octagonal and round will be much more open

I have seen this in the raw and am fascinated and impressed with your cleverness especially the .22 mags. I'll send you a case when I get home no need to return it.

My Snider dies set fits in a standard 7/8" reloading press

The sizer on left screws in from below and stops at the small bottom shoulder
Works well
Plus neck flaring die
Seating die and case holder courtesy of @Tentman

Amazing

Where did you get dies from
I'm trying to find a 11/4 inch press under the cost of an arm and a leg for mine

Originally Posted by Boxton

Amazing

Where did you get dies from
I'm trying to find a 11/4 inch press under the cost of an arm and a leg for mine

I got very lucky on those dies
Was a bit worried they would struggle to form the magtech to snider
But it was very easy with the annealing done properly

Some time soon I need to set up the automatic annealer and run all the magtech cases through

Looks interesting, will look forward to your updates.

I have recently ordered a couple of 9mm barrels from John at Vulcan

Originally Posted by Fssprecision

Looks interesting, will look forward to your updates.

I have recently ordered a couple of 9mm barrels from John at Vulcan

@Fssprecision he was working on them during last weekend when I was in his workshop ... he should have been working on my two 30-30 barrels

Originally Posted by akaroa1

@Fssprecision he was working on them during last weekend when I was in his workshop ... he should have been working on my two 30-30 barrels

But he's been a bit preoccupied with the heavy rain because he has a very stroppy stream near the workshop and he lives in fear of it breaking out and invading his special place

Originally Posted by Boxton

Amazing

Where did you get dies from
I'm trying to find a 11/4 inch press under the cost of an arm and a leg for mine

Im guessing thats thread size????so std dies screw directly in and dont have the daft quick change bit ....

Yes.
Most presses use a 7/8 die
I have snider and MH dies that use a 11/4.
Some presses have a collet that unscrews and you can screw in the larger die.
Mine doesn't
Still looking for a cheep ish second press to work on these
Some Rigby nitro and other big bore stuff also use the heavier dies too.

Just waiting to get picked up to recover a Hippo Bull we shot last night in the bloody water & checked in here !

Nice to see this coming together, something I have been going to do for years & years but have no talent to actually do.

Here we have a man getting things done, even some of my stuff lol

Appreciate this !

@Scout can come do the range sessions for me

I think he wanted a Baikal conversion at 7 pounds all up !
Shooting big bore rifles brings on early onset mental decline

that slip on recoil pad will be needed for that!!!!!!