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Old 04-19-2012, 00:09   #103
robert91922
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Join Date: Aug 2009
Location: Slovenia, Europe
Posts: 428
Vihtavuori 3N38 & 212gr hardcast bullets

After 2 batches w. N105/212gr hardcast (which were not so bad anyway) http://www.glocktalk.com/forums/show....php?t=1407651
... I decided to try a bit faster Vihtavuori 3N38. I found this powder to be more than ideal for 212gr hardcast bullets made by Target, Italy.
Here's ballistic data and equipment used:
- Glock 20 w. IGB 4.6" barrel, full supported
- DPM 3-spring system (stronger "silver" main spring)
- powder: Vihtavuori 3N38
- primers: CCI 300 Large Pistol
- brass: Starline, shot once in IGB barrel
- bullets: Target 212gr hardcast (HB/BHN 23)
http://www.targetbullets.it/hard-cas...ga_709223.html
- temp: 11C (52F)

load: 10.0gr COAL 1.261
1168
1161
1148
1160
1164
av. 1160 es 20.62 sd 7.48

load: 10.3gr COAL 1.263
1182
1171
1180
1186
1180
av. 1180 es 14.94 sd 5.47

load: 10.6gr COAL 1.263
1220
1203
1198
1196
1207
av. 1205 es 24.02 sd 9.48

load: 10.8gr COAL 1.267
1223
1201
1218
1216
1209
av. 1213 es 22.59 sd 8.54

load: 11.0gr COAL 1.270
1232
1225
1213
1222
1211
av. 1220 es 20.71 sd 8.66

load: 11.2gr COAL 1.271
1224
1229
1234
1241
1228
av. 1231 es 16.01 sd 6.48

load: 11.4gr COAL 1.273
1250
1246
1250
1232
1235
av. 1243 es 18.21 sd 8.54

All loads were very precise, no keyholing. If shooter (me) did his part of job a hole was in 8 - 10 points range at distance 25m (27 yards).
The only thing I dislike about these bullets is cleaning barrel aftermath. No significant lead fouling though, but spent a lot of time to clean it comparing to FMJ or JHP bullets.

P.S.:Beside my usual protecting equipment I was using LE riot helmet w. face shield as well. All went good, even primers flattened only to usual acceptable limits.
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Last edited by robert91922; 04-20-2012 at 08:48.. Reason: added link to 212gr/N105 data
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