DoubleD
(.400 member)
21/02/22 01:41 AM
577-2-3/4 NE Loads

Many years ago I picked up an unfinished gunsmithing project from a friend. I had a habit back in the day to pick these sort of things and set them aside as retirement projects.

The gun, a Greener Martini MKIII Police gun was virtually completed. A nice heavy barrel had been installed and sights mounted.

The stocks had been fitted but not finished.

The trigger is hard and the safety is iffy.

This has always been a round to-it project, with no real incentive to finish it.

Yesterday I was at my Outfitters Office picking gun I won at Auction. (Ruger No. 1 45/70 made in 1974.)

He was trying to sell me a Texas hunt and I really wasn't interested. I asked him what hunts he was going on this year and he told me about trip for Cape Buffalo in May next year. That interested me a bit but I was only lukewarm about going, when he told me that because my wife had bought a hunting rifle from him in the past year, if she booked a hunt he would cover 7days of the daily fees for her, she would have to pay her trophy fees.

When I got home I told here what the Outfitter said about getting 7 free days.

When she heard this you would have thought she got a 50% off coupon at Hobby Lobby.

In 2015 we did 10 days in South Africa and visited friends. That trip included a 3 days hunt for Warthog. She loved it.

My lovely wife says we are going to South Africa for our 75 Birthday hunt. Being the wonderful loving, dutiful husband that I am all I could say is "yes Dear".

So I need some loads for the 577-2-3/4" NE for Cape buffalo. How about some suggestions gentlemen.


DarylS
(.700 member)
21/02/22 04:49 AM
Re: 577-2-3/4 NE Loads

Wish I could help. Hope you have a fantastic time, DD and wife.

Marrakai
(.416 member)
22/02/22 03:05 AM
Re: 577-2-3/4 NE Loads

DD:
A lot depends on the weight of the finished rifle.
Also your choice of 650gr or 750gr bullets.

I can confirm that a 650-grainer at 1850fps needs more than 10-lbs of rifle to shoot comfortably!
A full-nitro 750-grainer at say 1950 fps probably needs 11 to 12-lbs (or 13..!), and may still be brutal if all the weight is forward of the mid-point.

Here's a bit of info from my experiences with a 10 1/4 lb double rifle in my custody: .577x2 3/4 Load Development

Terminal ballistics on buff described here.

Hope this is of some use in giving you a starting point.
There are more loads listed in Graeme Wright's books too of course.


3DogMike
(.400 member)
22/02/22 03:22 AM
Re: 577-2-3/4 NE Loads

Tony/Marraki is spot on and has been at the .577 game for a long while.

My own experience with NE loads is with my 1902 Webley .577 3” with 28” barrel that weighs 11lbs 6oz. It is about my pleasure tolerance with the equivalent of the old 90 Cordite 650 grain bullet at a chrono’d 1950’/sec.
I started with the “1.19 x Cordite load” of RL-15 and backer rod then worked up to equal the old velocity claims, no reason to change.

Easily loaded down a bit as well…..
- Mike


DoubleD
(.400 member)
22/02/22 05:36 AM
Re: 577-2-3/4 NE Loads

Greener MkIII Police Gun Martini, weighs 11 lbs. 28" inch bbl.

Gun has a bit of work to go before it is field ready. There are other guns being considered.

Hunt is being planned for May 2023. Wife's idea for our 75th birthday.

Being a dutiful and respectful husband I said, "Yes Dear".


lancaster
(.470 member)
23/02/22 05:23 AM
Re: 577-2-3/4 NE Loads

with the 577 you probably need only one shot so it will be ok with the recoil

93x64mm
(.416 member)
23/02/22 07:47 AM
Re: 577-2-3/4 NE Loads

Quote:

Greener MkIII Police Gun Martini, weighs 11 lbs. 28" inch bbl.

Gun has a bit of work to go before it is field ready. There are other guns being considered.

Hunt is being planned for May 2023. Wife's idea for our 75th birthday.

Being a dutiful and respectful husband I said, "Yes Dear".




DD
That is a real conundrum you are in mate!
Your reply would be matched by every bloke here when told by his wife the same thing!



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