Anybody use this for 10mm , 180-200 grain bullets? I can get (8) 1lb cans for a good price.
Hello Scorpion, Welcome to the forum! :D VV 3N38 is one powder I haven't worked with but I do have some data for it.
This is data from GlockTalk by SpongeMan66 and was considered MAXIMUM
Glock 29 Stock barrel
Rem 2 1/2 primers (be careful if you are using CCI 350s)
New Winchester Brass
COL 1.265
Remington 180 FMJ
5 shot strings
~ 80F
11.9 grains 3n38 Lo=1232 Hi=1245 ES=13 A=1235 SD=5 (Started to see smiles in Glock factory BBL)
11.9 3n38
TOO HOT: Saw one round with a smiley on G29.
My powder measure may have needed to settle down about 5-10 rounds.
I shot the first 10 rounds in my G29, and I had one round with a
smiley and 6 of 10 had higher than desired head expansion.
The 1911 rounds showed below desired max head expansion, and the G20
had one round at the desired max expansion.
Gun/barrel Lo Hi ES Avg SD
G29 1239 1273 34 1260 10
G20 1302 1335 33 1319 11
1911 5" 1320 1345 25 1331 9
G20 Jarvis 6" 1351 1407 56 1386 15
There is more data for N-105 & 3N37 than 3N38 in the VV data manuals
Here is some 200 grain XTP data from G-20er also from GlockTalk forum.
Here is the data using VV 3N38 and the 200 grain XTP Bullet. Anybody ever seen a handgun load with a 4.2 on standard deviation. That is great!!! This was the most accurate powder I have used yet. All 10 rounds were in a 3 inch diameter circle from 25 yards using open sights and a rest on barrel side of gun only.
G-20 with stock length KKM barrel
Starline Brass
CCI 300 primers (do not use mag primers with this powder).
OAL 1.250
Please Note: do not try to fire these loads in a stock Glock barrel. 9.3 was max load for the stock Glock barrel. See bottom of page for further information.
9.5 grains:
GROUP #6
1) 1163.0 14.8
2) 1160.0 11.8
3) 1152.0 3.8
4) 1134.0 -14.2
5) 1131.0 -17.2 ƒ
6) 1141.0 -7.2
7) 1152.0 3.8
8) 1146.0 -2.2
9) 1149.0 0.8
10) 1154.0 5.8
High: 1163.0
Low: 1131.0
E.S.: 32.0
Ave.: 1148.2
S.D.: 10.4
95%: ±8.0
10 grains:
GROUP #7
1) 1196.0 11.4 ƒ
2) 1182.0 -2.6
3) 1194.0 9.4
4) 1192.0 7.4
5) 1174.0 -10.6
6) 1182.0 -2.6
7) 1183.0 -1.6
8) 1182.0 -2.6
9) 1184.0 -0.6
10) 1178.0 -6.6
High: 1196.0
Low: 1174.0
E.S.: 22.0
Ave.: 1184.6
S.D.: 7.0
95%: ±6.0
10.5 grains:
GROUP #9
1) 1229.0 7.4 ƒ
2) 1224.0 2.4
3) 1226.0 4.4
4) 1223.0 1.4
5) 1218.0 -3.6
6) 1215.0 -6.6
7) 1221.0 -0.6
8) 1218.0 -3.6
9) 1221.0 -0.6
High: 1229.0
Low: 1215.0
E.S.: 14.0
Ave.: 1221.6
S.D.: 4.2
95%: ±4.0
10.8 grains:
GROUP #10
1) 1261.0 8.6 ƒ
2) 1252.0 -0.4
3) 1246.0 -6.4
4) 1252.0 -0.4
5) 1252.0 -0.4
6) 1257.0 4.6
7) 1254.0 1.6
8) 1251.0 -1.4
9) 1248.0 -4.4
High: 1261.0
Low: 1246.0
E.S.: 15.0
Ave.: 1252.4
S.D.: 4.4
95%: ±4.0
Maximum safe load with stock Glock barrel was 9.3 grains of VV 3N38 at 65 F OAT. This load produced only 1135 fps. 9.5 grains don't even try it with the stock Glock barrel. Very heavy smileys on all cases. I believe this powder was actually designed for lighter weight bullets in mind.
Maximum safe load using KKM barrel was 10.5 grains of VV 3N38 at 65 F OAT. This load produced 1221 fps with a SD of a low 4.2 I took the load as high as 10.8 but got light smileys on 75% of brass. 10.8 grains of VV 3N38 gave 1252 fps which matches DoubleTap Ammo; however, Mikes DT Ammo is running at much lower pressures and much safer.
I am learning that with the KKM aftermarket barrel with powders in this burn range, you can load 10% more powder which gives you approximately 110 fps more with same pressure signs as compared to the Glock stock barrel.
You can study what these guys have listed and work from lower charges to verify you are on track before going higher.
Hope this helps.
This is from Robert91922 an his Glock with a IGB fully supported 4.6" BBL
Vihtavuori 3N38 w. 180 gr HOrnady XTP's
Here's chrono report for 180gr XTP's / Vihtavuori 3N38 / CCI 300 LP / Glock 20 / IGB 4.6 barrel w. full supported chamber. Temp. was 21°C ( 70°F).
load (grains) average (fps)
11.0..............1214
11.2..............1223
11.4..............1257
11.6..............1264
11.8..............1272
12.0..............1280
Accuracy good (see target at 27 yrds bellow). Primers still OK, not flattened at all. Case Head Expansion at max. 0.431 but due to tight and full supported chamber of IGB barrel this could not be relevant.
Wow. Quite the info. Thanks!
Your welcome, Be safe!
Sounds like I might not want to start with this powder.
It's probably a little fast burning but is useable with the results others have had with it. Making some medium powder loads could yield some nice target loads. But there are other powders that could yield equal or better results while keeping pressures more reasonable levels. BTW you don't have to have the fastest bullets to have effective and accurate ammo.
;)
I have some BE-86 coming. Gonna start right there. Thinking about 180 grain bullets. Maybe 200?
GLock 29 w/KKM 4 port:
180gr XTP, 11.2gr VV 3N38 @ 1.250": 1,294 AVG - 9.27 ES - 6.40 SD
Stock Glock 20:
180gr Remington JHP, 11.5gr VV 3N38 @ 1.250": 1,344 fps (20 fps ES)
200gr Beartooth WFNGC, 10.5gr VV 3N38 @ 1.250": 1,238 fps (39 fps ES)
It's a great powder, I'd buy some if I could find it. I bought what little I have years ago online.
Not gonna try 3N38. I have BE-86 coming and grabbed 1lb of 800x. I have Bullseye and W231 from my .45 days.