385gr Rem Core-lokt in .500 S&W UPDATED

[quickdtoo]

Did a little investigating for you handloading Indiana hunters on the only inexpensive jacketed semi-spitzer bullet made for the .500 S&W, the Remington 385gr CoreLokt Ultra bonded, same bullet that's used in the Remington saboted shotgun slug ammo. I couldn't find the BC of this bullet, Remington doesn't list it, neither does Midway in their specs, but I did find this blurb in a Chuck Hawks article....

The 12 gauge Core-Lokt Ultra sabot bullet is a .50 caliber, 385 grain HP semi-spitzer. The catalog MV is 1900 fps and the 100 yard velocity is 1648 fps. The ME is given as 3086 ft. lbs. and the remaining energy at 100 yards is 2325 ft. lbs. The trajectory of that load looks like this: +1.8" at 50 yards, +2.4" at 100 yards, and +/- 0" at 150 yards.

Remington 385gr Corelokt Ultra Bonded

Uncannelured 385gr Corelokt Ultra Bonded

http://www.handloads.org/loaddata/default.asp?Caliber=500%20SqqqW%20Magnum&Weight=All&type=Handgun&Order=Powder&Source=

Using that info, I used an online BC calculator and came up with a BC of .285, ran that thru Sierra Inf and it seems close, maybe just a tad high since I don't know what the drag function value is , that remains to be seen as a reality, but the numbers I got for trajectory look like it would give good range compared to other bullets and pistol chamberings, particularly the downrange energy. I know that a healthy dose of Lil'gun will push the 350gr XTP to 2150fps, and Buffalo Bore's 400gr JFN did 2035fps for John Taffin in his 500 Handi, so I don't think it unreasonable to expect 2000-2100fps out of the 385gr Remington bullet, here are the numbers....

Trajectory Variations for Custom .501 Remington CL Ultra 385gr at 2000 Feet per Second
At an Elevation Angle of: 0 degrees
Ballistic Coefficients of: 0.285   0.285   0.285   0.285   0.285
Velocity Boundaries (Feet per Second) of: 2000   2000   2000   2000
Wind Direction is: 0.00 o'clock and a Wind Velocity of: 0.0 Miles per hour
Wind Components are (Miles per Hour): DownRange: 0.0   Cross Range: 0.0   Vertical: 0.0
Altitude: 500 Feet with a Standard Atmospheric Model.
Temperature: 59 F
Data Printed in English Units
Range   Velocity   Energy   Momentum   Drop   Bullet Path   B.P. Diff   Wind Drift
(Yards)   (Ft/Sec)   (Ft/Lbs)   (Lb-Sec)   (inches)   (inches)   (inches)   (Inches)
0   2000.0   3418.9   3.42   0.0   -1.5   0   0.0
25   1934.6   3199.1   3.31   -0.28   1.03   0   0.0
50   1870.6   2990.9   3.20   -1.14   2.99   0   0.0
75   1808.0   2794.0   3.09   -2.61   4.32   0   0.0
100   1746.9   2608.2   2.99   -4.76   4.98   0   0.0
125   1687.3   2433.3   2.88   -7.61   4.94   0   0.0
150   1629.3   2269.1   2.79   -11.23   4.13   0   0.0
175   1573.1   2115.2   2.69   -15.67   2.5   0   0.0
200   1518.8   1971.5   2.60   -20.98   0.0   0   0.0
225   1466.3   1837.8   2.51   -27.24   -3.45   0   0.0
250   1416.0   1713.8   2.42   -34.51   -7.9   0   0.0
275   1367.9   1599.2   2.34   -42.86   -13.44   0   0.0
300   1322.1   1493.9   2.26   -52.37   -20.14   0   0.0
325   1278.7   1397.6   2.19   -63.13   -28.09   0   0.0
350   1238.1   1310.2   2.12   -75.21   -37.36   0   0.0
375   1200.3   1231.4   2.05   -88.71   -48.05   0   0.0
400   1165.4   1160.9   1.99   -103.72   -60.25   0   0.0

Trajectory Variations for Custom .501 Remington CL Ultra 385gr at 2100 Feet per Second
At an Elevation Angle of: 0 degrees
Ballistic Coefficients of: 0.285   0.285   0.285   0.285   0.285
Velocity Boundaries (Feet per Second) of: 2100   2100   2100   2100
Wind Direction is: 0.00 o'clock and a Wind Velocity of: 0.0 Miles per hour
Wind Components are (Miles per Hour): DownRange: 0.0   Cross Range: 0.0   Vertical: 0.0
Altitude: 500 Feet with a Standard Atmospheric Model.
Temperature: 59 F
Data Printed in English Units

Range   Velocity   Energy   Momentum   Drop   Bullet Path   B.P. Diff   Wind Drift
(Yards)   (Ft/Sec)   (Ft/Lbs)   (Lb-Sec)   (inches)   (inches)   (inches)   (Inches)
0   2100.0   3769.3   3.59   0.0   -1.5   0   0.0
25   2032.7   3531.6   3.47   -0.25   0.81   0   0.0
50   1966.7   3306.0   3.36   -1.03   2.59   0   0.0
75   1902.0   3092.2   3.25   -2.37   3.81   0   0.0
100   1838.7   2889.7   3.14   -4.31   4.43   0   0.0
125   1776.8   2698.5   3.04   -6.89   4.4   0   0.0
150   1716.5   2518.2   2.93   -10.16   3.69   0   0.0
175   1657.7   2348.8   2.83   -14.17   2.24   0   0.0
200   1600.6   2189.8   2.74   -18.97   0.0   0   0.0
225   1545.3   2041.1   2.64   -24.61   -3.09   0   0.0
250   1491.9   1902.5   2.55   -31.17   -7.09   0   0.0
275   1440.6   1773.8   2.46   -38.7   -12.06   0   0.0
300   1391.3   1654.6   2.38   -47.28   -18.08   0   0.0
325   1344.3   1544.7   2.30   -56.98   -25.22   0   0.0
350   1299.8   1444.0   2.22   -67.89   -33.57   0   0.0
375   1257.8   1352.2   2.15   -80.08   -43.2   0   0.0
400   1218.6   1269.2   2.08   -93.64   -54.21   0   0.0

[Walks with a gimp]

  Those were the first bullets I hand-loaded for my .500.  Accuracy wasn't good with a starting load of H110.  The next bullet I laoded was the 275 grain Barnes with a starting load of H110 also and they shoot into the same hole at 50 yards. When deer season is over I'll play some more with my .500. I don't like to make too much noise here shootin' guns because I bow hunt  the back 40.

 I also have some cast 440 grainers with Tite Group loaded up to try,, someday..

[quickdtoo]

Every load I've tried with Lil'gun has shot 2" or less at 100yds, even the 700gr Ranger Ricks at 1430fps. One issue that may be a problem with the Rems is consistency, I measured a couple at .5015" which should be good for my bore as it slugs  .5015 -.502" in the grooves, if they're all that size that is! I think if you push them hard, they'll shoot good, but most folks don't like the recoil of the hot loads.

Tim

[cwlongshot]

Who's afraid of a little recoil?  Not me!! I loaded up a doz with H4227 and another doz with Lil-Gun.. gonna see what the handi likes...

 HOPEFULLY this week...

CW

[quickdtoo]

I have 30 rounds loaded up with Lil'gun in groups of 3 in ½gr increments, may shoot em Wed if I don't go deer huntin.

Tim

[cwlongshot]

I do 5 in 1/2 gr increments, my self. I start with a clean barrel, I shoot two, just to foul the bore. Then shoot 3 for group. Allow to cool and repeat.  Inbetween is where the 22's come in.

 Good luck!!

 I even got some shoulder protection mounted up!!



 CW

[quickdtoo]

Here's the range report for these bullets.

Tim

http://www.gboreloaded.com/forums/index.php/topic,176647.msg1098841196.html#msg1098841196

[bikerbeans]

Quick,

I understand lettin' the barrel cool between shots, but 2+ years to fire 30 rounds seems a bit excessive!   Even Gendoc doesn't let his 39 sit that long between rounds.

BB

[quickdtoo]

Well BB, it's real important to make sure the barrel cools sufficiently between shot strings!! 

Seriously tho, there wasn't that much time between actual load building and when I actually shot them, specially considering when I made them during deer season and the fact the range I shot at closed to non-members during the week leaving the Sunday circus the only option which is a game I refuse to play!  The thread was started when I received the bullets from Cabela's, made up the loads a long time later, then shot them in June 2009, my last range trip before that was in Aug 2008 IIRC except for some zero checks made just before deer season. The 500S&W is pretty much a novelty round for me, I never intended to buy one, but just happen to get a heck of a bargain on new RCBS dies and Hornady bullets, so I couldn't resist buying a used barrel just to play with when the opportunity presented itself!! 

Tim