10mm chrony today

[intercooler]

- Underwood 135gr Nosler (1600 FPS)
4.75" Match- 1613, 1625, 1606, 1658, 1620. Avg. 1624.4 FPS/ 791.2 LBS. Similar to last time out.
6" Hunter- 1706, 1698, 1752, 1691, 1655, 1716, 1716, 1685. Avg. 1702.4/ 869 LBS. I ran off a decent amount to make sure my string was good.

- Underwood 165gr HP (1400 FPS)
6" Hunter 1514, 1501. Avg. 1507.5 FPS/ 832.5 LBS. Limited amount of these so only ran the two. I did a ton before with the Match but didn't have the Hunter at that time. Good numbers!

- Underwood 180gr HP (1300 FPS)
4.75" Match 1306, 1333, 1306, 1348, 1342, 1331. Avg. 1327.67 FPS/ 704.7 LBS. Same as in the sheet and same as everytime I shoot the 180's.
6" Hunter 1358, 1346, 1346, 1358, 1359, 1376. Avg. 1357.2 FPS/ 736.2 LBS.

- Underwood 200gr XTP (1250 FPS)
4.75" Match 1185, 1273, 1212, 1257, 1186, 1214, 1195, 1196. Avg. 1212 FPS/ 652.5 LBS.
6" Hunter 1215, 1229, 1223, 1223, 1230, 1222, 1206, 1228, 1231. Avg. 1223 FPS/ 664.4 LBS.

- Scottsdale Ammo 180gr TMJ (1265 FPS)
4.75" Match 1315, 1315, 1283, 1261, 1295, 1253, 1287, 1254. 1282.88 FPS/ 658 LBS. New source and looks like their claims are valid.
6" Hunter 1303, 1301, 1325, 1339, 1294, 1299, 1280, 1294, 1309. Avg. 1304.88/ 680.7 LBS.

- Buffalo Bore 200gr FMJ
4.75" Match 1196, 1195, 1212, 1204, 1178. Avg. 1197 FPS/ 636.5 LBS. Repeats with last test results.
6" Hunter 1244. Only had one to shoot so 1244 FPS/ 687.4 LBS.

- PMC 200gr FMJ (Ammo Exchange with David Sneed YouTube)
4.75" Match 1071, 1077, 1069, 1075, 1076. Avg. 1073.6 FPS/ 512 LBS.
6" Hunter 1115, 1123, 1122, 1110, 1115. Avg. 1117 FPS/ 554.2 LBS

 

[intercooler]

Didn't transfer right. Sorry

 

[MachIVshooter]

This should probably be in Handguns: Autoloaders, and I'd recommend just a summary that includes average velocity, number of shots, extreme spread and standard deviation after gun and environmental conditions are listed.

 

[intercooler]

I can change it up when I get home.

 

[Snowdog]

Intercooler, thanks for the data! I always appreciate real-world chrono results.

 

[MachIVshooter]

That looks better.

I still don't understand 135 gr. 10mm loads, though, unless you're varmint hunting with a handgun. The 135's simply cannot handle being driven to over 1,600 FPS. Penetration is abysmal.

I personally use nothing under 180 in full power loads.

 

[intercooler]

I haven't shot anything with the 135's but a report I got from someone who disected one taken with a 135 said it looked like it swallowed a hand-grenade. Fragmentation is probably pretty high though..

 

[intercooler]

Here is the master sheet you can save a copy:

https://docs.google.com/spreadsheet...Eh6eGZ3N3hpUU13SXM5cm9pZy16T0E&hl=en_US#gid=0

 

[MachIVshooter]

I got from someone who disected one taken with a 135

Dissected one what? The size of the animal really matters here.

And for the record, I'm not saying that a 135 at 1,600+ isn't lethal. It most certainly is. But reliable, adequate penetration is paramount, and extrememly light for caliber bullets driven at velocities well in excess of their design parameters are known to fail in this regard.

 

[intercooler]

Oh... typing in a hurry... a Deer.


The 135's are just fun as hell to shoot. I have no idea on the hunting with them though.

For me:

- Corbon 155 DPX home defense
- Underwood 165 or 180 HP if I were to hunt Deer

Maybe someone who has taken game with a 135 can chime in with results.

 

[intercooler]

Enjoy:

http://www.glocktalk.com/forums/showthread.php?t=1373461&page=2

 

[MachIVshooter]

Seemed to work out well for him.

That's a small deer, though. Smaller than many speed goats around here.

I'll stick with 180 GSHP's and 200 XTP's

 

[intercooler]

Georgia Arms 180gr (1150 FPS) JHP 4.75" Match: 1146, 1126, 1114, 1156, 1102. Avg. 1128.8 FPS/ 509.4 LBS.
Georgia Arms 180gr (1150 FPS) JHP 6" Hunter: 1209, 1159, 1200. Avg. 1189.3 FPS/ 565.2 LBS.

Underwood Ammo 200gr (1250 FPS) XTP 4.75" Match: 1228, 1274, 1232, 1215, 1192, 1198, 1219, 1236, 1203, 1215. Avg. 1221.2 FPS/ 662.5 LBS.
Underwood Ammo 200gr (1250 FPS) 6" Hunter: 1283, 1234, 1273, 1265, 1277. Avg. 1266.4 FPS/ 712.4 LBS.


Today's testing. Improved 200 XTP's and Georgia Arms for the first time.

 

[castingdonkey]

How are you figuring out ftlbs of energy. Is that an equasion of bullet weight and velocity? Is it muzzle energy?

 

[intercooler]

Yea here ya go:

http://en.wikipedia.org/wiki/Muzzle_energy