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Old 12-29-2010, 13:18   #49
whenmonkeysfly
CLM Number 249
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Join Date: Jul 2006
Location: Florida
Posts: 360


Hodgdon Longshot
Speer 180 Grain TC FMJ
New Starline Brass
CCI-350 Primers
1.255 OAL
6" LWD Barrel
Wolff 22# Spring
60F, Sea Level


String 1 - (9.6 Grains of Hodgdon Longshot)
1) 1403.0 4.4
2) 1392.0 -6.6
3) 1388.0 -10.6
4) 1408.0 9.4
5) 1402.0 3.4

High: 1408.0
Low: 1388.0
E.S.: 20.0
Ave.: 1398.6
S.D.: 8.3
95%: 11.5

String 2 - (8.2 Grains of Hodgdon Longshot)
1) 1198.0 -24.6
2) 1231.0 8.4
3) 1199.0 -23.6
4) 1206.0 -16.6
5) 1279.0 56.4

High: 1279.0
Low: 1198.0
E.S.: 81.0
Ave.: 1222.6
S.D.: 34.2
95%: 47.5

String 3 - (8.2 Grains of Hodgdon Longshot)
1) 1242.0 -15.8
2) 1282.0 24.2
3) 1233.0 -24.8
4) 1274.0 16.2

High: 1282.0
Low: 1233.0
E.S.: 49.0
Ave.: 1257.8
S.D.: 23.9
95%: 43.9

String 4 - (8.2 Grains of Hodgdon Longshot)
1) 1242.0 -2.8
2) 1219.0 -25.8
3) 1235.0 -9.8
4) 1240.0 -4.8
5) 1288.0 43.2

High: 1288.0
Low: 1219.0
E.S.: 69.0
Ave.: 1244.8
S.D.: 25.8
95%: 35.8

String 5 - (8.2 Grains of Hodgdon Longshot)
1) 1269.0 19.7
2) 1213.0 -36.3
3) 1266.0 16.7

High: 1269.0
Low: 1213.0
E.S.: 56.0
Ave.: 1249.3
S.D.: 31.5
95%: 95.8

String 6 - (9.6 Grains of Hodgdon Longshot)

1) 1407.0 5.6
2) 1393.0 -8.4
3) 1408.0 6.6
4) 1411.0 9.6
5) 1395.0 -6.4
6) 1399.0 -2.4
7) 1398.0 -3.4
8) 1403.0 1.6
9) 1399.0 -2.4

High: 1411.0
Low: 1393.0
E.S.: 18.0
Ave.: 1401.4
S.D.: 6.2
95%: 5.1


I found 9.6 Grains of Longshot to be pushing what I'm comfortable with loading in my 10mm Glock 20. Smiles with primers and headstamps flattening. Nice velocities for a 180 Grain bullet, but IMHO seems to be at case limits - those cases are no longer in the reloading pile. The 8.2 grains of Longshot seemed to perform about as expected. I'd like to get 1250~1300fps, so an increase to 8.4 grains may be the ticket. Cases looked fine with the 8.2 grains of Longshot and appear to have room to grow.

These loads were done on my Dillon XL-650. Velocities obtained from a CED M2 Chronograph with Infrared Screens.

Hope this data is useful. Have a Happy and Safe New Year!
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Navy Corpsman, 1971-1975; NRA Patron Life Member; The 10mm "...more energy at 100 yards than a .45 ACP at the muzzle." - Massad Ayoob quoting Col. Jeff Cooper

Last edited by whenmonkeysfly; 12-29-2010 at 13:29.. Reason: Clarification
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