I recieved some more verbal data from the lab today the final report will be forwarded to me when they are through. But a 700gr Barnes Banded solid at 2,300fps at 60,000psi is what they came up with. If memory serves me that is 8,222 ft/lbs of muzzle energy out of a 24" barrel on a hunting (stopping)(stomping) rifle.

Righteous!

Congrats!

This is great news, I'm very anxious to get started with my 550 project. Planning on a completed rifle by mid December- my Christmas present! Rodney.

I talked to Neal on this last night... remember, the barnes solids are longer than most peoples attention span!!

Rich

How does your post relate to 550 Magnum loading data I am having a hard time finding the connection, it seem way off topic.

that would be a first for the AR Forum...

Rich
DRSS

PS: how about getting back with me on my business proposal?

RNS what is yer favorite bullet weight and velocity?

oh oh oh,, *I* know...
700gr hawkgrenades at 2350 fps!!!

very close grasshopper. 700gr at 2300fps Hawk

#2 is the 715gr cast at 1900-2000

The barnes solids are 1.5"

A 550 reamer from Neal got here, and I have Enfield with long 550 barrel that will be
chambered few days. Will test a bunch of the
600gr 550 Hawk bullets I have, so that Neal
and others will have info on the type of
powders I like and in a long barrel.Ed.

550 mag 600gr Hawk. overall loaded length
3.80".Which is what neal has his set at.
Now at this loaded length, shorter 600gr
bullet it has a powder capacity close to
Rich's 550 gibbs and our 577 Belted case,
when the 577 had heavy bullet seated
to the shorter 3.60" length for short actions.
And in 33" barrel really moving out.Top
loads below. Cut starting loads 10%.Ed

125gr-----RE22------1930 fps,
125ge-----RE19------2040,
125gr-----RE15------2300.

120gr------4831-----1970,
120gr------4350-----2110,
115gr------4320-----2250.

135gr------W760-----2260,
135gr------W748-----2450,
135gr------H335-----2600.

THANK YOU ED!!!!!!!!

I will get to work on these in the morning and let you know what my 26" barrel shows.

Rich
DRSS
Knowledge not shared is knowledge lost...

That 600 Grain at 2600 FPS should be VERY interesting!!!

Rich- I didn't know you had a 550 Magnum,
based on a 3" Wea case. Just start loads
down 10%. Mac-With that Hawk grenade bullet
it do the damage on a lion.ED

I think he is going to use those loads as starting loads for his 550 Gibbs.

Boomie-Rich- It is ok to use these as starting loads,in 550 Gibbs but don't cut them back in that little bigger case. And you won't get
same velocity due to bigger case and shorter
barrel with same bullet. You should get about same with that shorter bbl, with about 10 gr
more powder, depending on how far out you
seat bullet.Ed

thanks Ed...

Rich
DRSS
Knowledge not shared is knowledge lost...

Varmint loads in 550 MAG is something
we need. For little/big varmints.Like 300 gr
hollowpoint at about 3800. Like neighbor
and brother shooting pdawgs with 460Wea
out west.Ed