NEW: 300 Whisper Forums!
After considerable frustration on my part, I have finally managed to get a new forum up and running. The forum includes two areas, one for area for 300 Whisper rifles and pistols and a second for reloading and ammo issues. I have a huge number of visitors that come to these pages each day so please drop in the forum and say "Hi" and share your projects!
Note: The material on this page was provided by J.D. Jones of SSK Industries and he has given permission for it's use.
Click HERE to go to SSK Industries
300 WHISPER DATA (Super-sonic)
(.221 REMINGTON FIRE BALL PARENT CASE)
REM. 7-1/2 PRIMER, 16.5-INCH BARREL, 70 ° F |
Powder Charge Grains
|
Powder |
Average FPS/FPE |
Extreme Spread Notes
|
125-Grain Nosler Ballistic Tip (Temperature 60-65F) |
20.6 |
Hodgdon 110 |
2333/1511 |
20 Bolt Gun (BG) |
20.6 |
Hodgdon 110 |
2283/1447 |
64 AR-15 |
22.0 |
Hodgdon 110 |
2438/1650 |
31 BG |
150-Grain Bullet (Temperature 60-65F) |
18.8 |
AA No. 2015 BR |
1615/869 |
29 |
18.9 |
Reloader 7 |
1834/1121 |
54 |
20.2 |
AA No. 1680 |
1994/1325 |
40 |
18.0 |
Hodgdon 110 |
2073/1432 |
13 Bal Tip |
18.0 |
Hodgdon 110 |
2014/1351 |
29 AR-15 |
168-Grain Bullet (Temperature 60-65F) |
18.8 |
AA No. 2015 BR |
1672/1043 |
28 |
18.9 |
Reloader 7 |
1823/1240 |
19 |
20.2 |
AA No. 1680 |
1906/1356 |
12 |
17.2 |
Hodgdon 110 |
1958/1431 |
27 |
190-Grain Bullet (Temperature 60-65F) |
17.7 |
AA No. 2015 BR |
1564/1032 |
18 |
17.9 |
AA No. 1680 |
1754/1298 |
34 |
15.4 |
Hodgdon 110 |
1725/1256 |
40 |
220-Grain Bullet (Temperature 60-65F) |
15.6 |
AA No. 2015 BR |
1429/998 |
25 w/out slow shot |
15.4 |
Reloader 7 |
1485/1078 |
47 |
15.6 |
AA No. 1680 |
1467/1052 |
64 BG |
15.6 |
AA No. 1680 |
1492/1088 |
11 AR-15 |
12.5 |
Hodgdon 110 |
1412/974 |
47 |
9.1 |
Hodgdon 110 |
1070/559 |
49 |
250-Grain Bullet (Temperature 60-65F) |
12.0 |
AA No. 2015 BR |
1101/673 |
42 |
12.1 |
Reloader 7 |
1211/814 |
44 |
13.9 |
AA No. 1680 |
1304/900 |
38 |
14.6 |
AA No. 1680 |
1377/1011 |
36 AR-15 (240 gr.) |
12.0 |
Hodgdon 110 |
1376/1009 |
46 (240 gr.) |
|
|
|
|
Note: 250 grain bullets are no longer in production. The 240 Sierra Matchking replaces it. Two decimal charge weights were obtained using an electronic scale by averaging ten dropped charges. |
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