06 September 2009, 01:42
Idaho Sharpshooter505 Gibbs loads...
who's shooting what with Woodleigh solids?
Rich
06 September 2009, 02:36
tiggertateI wanna say I was shooting 110 grains of Rel-15 with those, Rich. That's right at 39,500 psi and 2300 fps. 130 grains of Rel-19 will work about the same if you like better load density (81% vs. 96%). Lots of room to grow if you want more than that. There's more data on the Ar reloading pages.
06 September 2009, 04:39
MJinesRich,
I was using 108 grains of RL15, F215M, 5 grains dacron and 600 grain Woodleigh SPs and was averaging 2144 fps. Extreme spread was 33 fps. For a 600 grain bullet I was looking for 2150 fps and that's about what I was getting. Hope that helps.
06 September 2009, 05:16
Idaho SharpshooterThanks guys.
Sadly, 500gr deleted most of his data before getting the boot...
Rich
Gibbs by Gosh, like Dial soap it takes the worry out of being close...
06 September 2009, 05:51
MacifejWhat's with the renewed interest in medium bores Rich ...??
06 September 2009, 07:59
tiggertateI have loaded 130 grains of Rel-15 behind the 525 Woodliegh solid for almost 2600 fps but neither Hog Killer nor I recommend it.
06 September 2009, 08:45
Idaho SharpshooterMac,
my wife wants to use the rifle for elk this year.
Rich
06 September 2009, 08:46
Idaho SharpshooterTigger,
I would have bet at least a dollar (cash money) that was a recommended starting load for the two of you!
Rich
06 September 2009, 11:07
Hog Killerquote:
Originally posted by Idaho Sharpshooter:
Tigger,
I would have bet at least a dollar (cash money) that was a recommended starting load for the two of you!
Rich

Keith
06 September 2009, 11:32
338UserHi Rich,
I settled on 130gn AR2209 (H4350) behind the 600gn Woodleigh (soft or solid) for around 2270fps. (The solids are probably about 10fps slower, which is minimal difference). I use 140gn AR2209 behind the 525gn soft (haven't tried the 525gn solid yet), for about 2500fps. Those are both mild loads in my rifle, but use caution, and start from a bit lower in your rifle.
06 September 2009, 12:22
RIPFor Woodleigh 600 grainers, you best not get over 2300 fps if you want them impacting at 1800 to 2200 fps, the recommended velocity by Woodleigh.
Use Nickudu's RL-15 loads with 4 to 5 grains of Dacron filler.
His most accurate load was about 2300 fps with 600-grain Barnes solids.
See the reloading pages of ar.com.
Most oomph for the least recoil: RL-15 or Varget with Dacron.
Good idea if it is to be used by a girl.
06 September 2009, 13:29
huskyquote:
Originally posted by RIP:
For Woodleigh 600 grainers, you best not get over 2300 fps if you want them impacting at 1800 to 2200 fps, the recommended velocity by Woodleigh.
Hi RIP!
What distances are you using your .505 Gibbs?

my loads:
CORDITE 80 – 600 MAX
-OR-
Norma MRP 2 - 128,5 – 600 Max
06 September 2009, 22:08
RIPHusky,
Since I have hundreds of options besides .505/600gr bullets to use for whatever I might need,
I mostly don't use the .505.
The way this thread was languishing, however, it is a good thing that I have drawn you into livening it up.
Pray tell what velocities your loads with 600-grainers translate to:
Cordite: 80 grains
and
Norma MRP-2: 128.5 grains
I am sure that the velocity is well below 2300 fps.
Is it 2150 fps?
If you start the Woodleigh 600-grainers off at 2300 fps, either the soft or solid,
they will be well below 2200 fps at 50 yards.
At 100 yards, they will be well below 2100 fps.
If you want to shoot at 25 yards or less, limit the MV to 2200 fps with Woodleighs.
Frankly, I would get a better bullet and use higher velocities.
However, this thread is about adapting a .505 Gibbs for a girl to shoot elk with.
Elk are more likely to be shot at 50 to 100 yards, or longer.
2300 fps would be a good girl's load for elk with 600-grain Woodleighs.
The antique loads for the .505 Gibbs were 525-grainers at 2300 fps.
Maybe that would be a better elk load for a girl?
