The Accurate Reloading Forums
577 Belted Magnum Express
30 August 2007, 06:01
WhitworthWhat twist, Jeff?
"Ignorance you can correct, you can't fix stupid." JWP
If stupidity hurt, a lot of people would be walking around screaming.
Semper Fidelis
"Building Carpal Tunnel one round at a time"
30 August 2007, 06:27
boom stickquote:
Originally posted by Whitworth:
What twist, Jeff?
pac nor only makes one flavor...it is 1 in 18 with 9 grooves. custom b+b will order them
30 August 2007, 06:44
jeffeossothe 18 twist... i've shot rob's 585 nyati and richards' 577 ne with those barrels... scary accurate
faster twist aint there, so have a ball
30 August 2007, 22:55
boom stickthanks for the report el jeffe...
seems pac-nor has the no bid contract

01 September 2007, 01:44
boom stickUpdate...
We have the approved chamber reamer print so in about 4 weeks we can get to the next "git'r done" stage.

01 September 2007, 02:53
Idaho SharpshooterYesssssssssssssssss! I have a 505 Gibbs Enfield enroute, and Dave Manson says I will have reamers in hand in four weeks or less! Switch out that barrel, and get to abusing myself.
Four months from Boomie asking me about a a 600 and my answer that "..only if you are willing to headspace it on the case mouth like a 45acp..." to his hour later response "...why not just put a belt on it..." to working with Ed Hubel to create belted cases...to reamers being made, and my being able to shoot the first one come middle of October.
Not bad for a "dreamer", I'd venture to say.
Of course, we need to offer kudos to Neal Shirley for making 4000 cases available, and to Ed Hubel for being able to make the belt on the 505 Gibbs cylindrical and providing Dave Manson with two sample cases (got them today) and final dimensional drawings. Thanks also to Dave for taking an interest and expediting the reamers. They will allow for a file and trim die as well as reloading dies and chambering the rifle. He says I will have them in hand in four weeks or less!
I take no credit, except for recognizing a "good thing" and being in position to facilitate the process. Maybe, cheerleader is a more semantically proper description. Anyway, I get to actually build the rifle and shoot it first!!!
regards,
Rich
DRSS
01 September 2007, 03:33
boom stickquote:
I get to actually build the rifle and shoot it first!!!
lucky dog!
it needs to be numbered # 1
01 September 2007, 04:16
Idaho Sharpshootersettle for a small oval german silver plate in the butt stock? This is as bad as the last two weeks before Christmas!
Rich
DRSS
03 September 2007, 01:41
jeffeossoGents
prior to making the first rifle, it would suit you well to send a drawing and a letter to the ATF techincal and ask for a ruling that it be a sporting round. you do NOT want a DD exception, you want it a sporting round. reference the style of weapon suitable and that this is actually smaller than the other 585s
GET IT REGISTERED as a sporting round
jeffe
03 September 2007, 01:52
boom stickEd has done his so maybe he can be the Obie Wan Kenobe here...Skywalker out...
Rich...does that make you Han Solo???
thanks Yoda Jeffe
Jeffeosso I will let you pick yer own Star Wars alter ego...Bobafet???
03 September 2007, 03:44
Idaho Sharpshooternah, I'm holding out for the Wookie slot.
Rich
DRSS
03 September 2007, 03:48
boom stickHa!
Maybe El Jeffe wants to be Han Solo...
how many days left??? damn...
03 September 2007, 04:04
GrandpasezAs we get going here I will get it
set up as sporting, with letter to
ATF Tech dept, like I did my
700s. I just make copies of letter
they send, for everyone..Ed
MZEE WA SIKU
03 September 2007, 04:08
boom stickquote:
Originally posted by hubel458:
As we get going here I will get it
set up as sporting, with letter to
ATF Tech dept, like I did my
700s. I just make copies of letter
they send, for everyone..Ed
awesome ed!

08 September 2007, 05:30
GrandpasezI got Rich's cases done, they will go out
first of the week. When cases from
Custom Brass arrives will start
on them, Next few weeks will get
a few loads with different powders tested
with 650/750 gr bullets.Ed
MZEE WA SIKU
08 September 2007, 05:37
boom stickcool ed!
can you post pics of the line up?
16 September 2007, 04:09
GrandpasezTested some loads
today in my 585 with volume reduced to
match the 3" 577 Belted Mag.750 gr bullet.
Everything extacts easy,most could
be reloaded and shot without resizing.
Thr RL powders could be loaded higher
with compressed loads, and pressures
still would be moderate.
RL-22- 125gr.....1750 fps
RL-22- 135gr.....1850 fps
RL-19- 125gr.....1860 fps
RL-19- 135gr.....1950 fps
RL-15- 125gr.....2140 fps
RL-15- 135gr.....2250 fps
7383 Surplus-110gr.....1770 fps
7383 Surplus-120gr.....1900 fps(Max load)
I tested 7383 as Rich wanted to see what
it would do if someone has some to use,
being it is 3-4 bucks a lb. None of these
expanded my cases more than the called for
base size with the cases starting out after
resizing only .002" smaller. So shows
moderate pressures. Love my belted cases.
Will test IMR powders and ball powders
next few days. The ball powders will get
Trex loads if wanted without hurting brass.Ed
MZEE WA SIKU
16 September 2007, 07:38
boom stickAwesome info Ed!
The fun is getting the magic powder and velocity

Aint she pretty...
22 September 2007, 21:24
GrandpasezTested ball powders--Bullet seated to
cannalure on Woodleighs 750 gr.
It could take more powder with safe
pressures if bullets witha a .600"
base to cannalure distance, was
seated out.These loads are moderate
for firing cases 20 times.Ed
H-414....135gr----2035 fps
H-414....145gr----2150
W-760.....135gr----2050
W-760.....145gr----2170
W-748.....125gr----2230
W-748.....135gr----2350
WC860 surplus 145gr--1750 fps
MZEE WA SIKU
22 September 2007, 22:38
Idaho Sharpshooterthank you Ed! I am really liking those W-748 numbers.
I have a Krieger 577 barrel enroute (get it in gear UPS!!) and am still figuring out which rifle to convert. I really like my CZ 505 Gibbs as the master frozen water in a milk jug blaster, so it will most likely be done on my M30 Remington with the Wisner sheet metal. My guy can start as soon as the barrel gets here, he has the Enfield 505 Gibbs apart and is contouring the 550 barrel I got from Jeffe.
I can hear the fiddle player tuning up...
Rich
DRSS
Knowledge not shared is knowledge lost...
22 September 2007, 23:01
boom stickThanks again ed!
750 grains @2350 moderate preasure...20 firings...
ubercool

h-414, 145 gr, 2150 fps...CLASSIC!
w-760, 135 gr, 2050 = 577 Nitro
22 September 2007, 23:31
RNSplease post a case drawing
RNS
23 September 2007, 00:01
GrandpasezI don't have a scanner for print, but here
are measuresments, Case 3" long.
Bore .585" -- Mouth .605"---Rim .634"
Belt diameter .634 inch-
Base(ahead of belt) dia .618 inch--
Belt headspace length .250 inch.
Sides straight from front of belt step
to mouth. Ed
MZEE WA SIKU
23 September 2007, 00:02
boom stickRNS, I dont have a case drawing but one could be made.
23 September 2007, 00:06
boom stickThanks again Ed...Simply giddy! Awesome way to start my weekend

27 September 2007, 06:46
GrandpasezTested three IMR powders. Woodleigh
750 gr seated to cannelure.If bullet
seated out more 4831 and 4350 could be
used with moderate presssure.Ed
IMR4831...120 gr----1750 fps,
IMR4831...130 gr----1870 fps,
IMR4350...120 gr----1850
IMR4350...130 gr----2000
IMR4320...120 gr-----2070
IMR4320...130 gr----2210.
MZEE WA SIKU
27 September 2007, 07:36
boom stickThanks Ed!

You are having all the fun

27 September 2007, 08:18
Idaho SharpshooterI am going out on a limb and suggest that the second 120gr charge of 4320 should actually be 130gr...?
Rich
DRSS
Knowledge not shared is knowledge lost...
27 September 2007, 09:24
GrandpasezThat's right, I miss-typed.Ed
MZEE WA SIKU
07 October 2007, 23:48
GrandpasezShot a couple 650 gr over 2600 fps.
137 gr of H335. Ed
MZEE WA SIKU
07 October 2007, 23:52
boom stick
Way to go Ed!

08 October 2007, 09:29
boom stickI calculated that load is teetering on 10,000 fpe!
08 October 2007, 09:52
Conquote:
Originally posted by boom stick:
I calculated that load is teetering on 10,000 fpe!
And in a 14lb rifle teetering on 131fpe recoil

Cheers...
Con
08 October 2007, 10:40
boom stickSome would love that...Me I will be quite happy with the classic load of 750@ 2050 fps at looooow preasure and a 1600 fps one for targets beit pigs, squirrels, yotes or paper.

28 October 2007, 23:42
GrandpasezTested VV-560 Double base stick
powder nearly identical to RE22.Ed
MZEE WA SIKU
29 October 2007, 01:47
boom stickThanks Ed!

a 577 in every gunsafe

05 November 2007, 06:31
GrandpasezA 577 at everyones shooting range, making big holes that are easy to see on target,and
ggod plinking load is 130 gr IMR 7828
at 1850 with 650 gr bullet.Ed
MZEE WA SIKU
05 November 2007, 06:35
MacifejBig holes are good!! No spotting scope required!!

05 November 2007, 19:47
Rodney H.{500Jeffery}Just waiting for MRC to come through with their PH so I can have one too! R.