I've had good luck with the following for a plinking round.
147gr M80 pulldowns, seated to the cannelure (don't have the COL in front of me)
LC converted brass
16.5gr H110
CCI 400 primers
Runs 1955fps (ES of 35fps) from my 16" CMMG barrel, 1-1.5 MOA accuracy.
Share your 300 Blackout Loads here>
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Re: Share your 300 Blackout Loads here>
Some more chrono results from today.
All loads fired through a 16" 300 Fireball upper with carbine gas. Brass is Remington 221 Fireball. Primers are CCI 41.
1. Hornady 220 grain RN - COAL 2.000" - 11.6 grains Accurate 1680 - 9 shots, last round jammed on feeding
Quickload predicts 1275 fps @ 35K psi
Quickload predicts 1406 fps @ 49K psi
Quickload predicts 1179 fps @ 32K psi
Quickload predicts 1939 fps @ 48K psi
Quickload predicts 2159 fps @ 55K psi
Quickload predicts 1836 fps @ 54K psi
All loads fired through a 16" 300 Fireball upper with carbine gas. Brass is Remington 221 Fireball. Primers are CCI 41.
1. Hornady 220 grain RN - COAL 2.000" - 11.6 grains Accurate 1680 - 9 shots, last round jammed on feeding
Quickload predicts 1275 fps @ 35K psi
- HI 1107
LO 1054
AVG 1076
SD 20
ES 53
Quickload predicts 1406 fps @ 49K psi
- HI 1275
LO 1225
AVG 1237
SD 16
ES 50
Quickload predicts 1179 fps @ 32K psi
- HI 993
LO 935
AVG 959
SD 17
SD 58
Quickload predicts 1939 fps @ 48K psi
- HI 1910
LO 1870
AVG 1888
SD 12
ES 40
Quickload predicts 2159 fps @ 55K psi
- HI 2018
LO 1978
AVG 1994
SD 14
ES 40
Quickload predicts 1836 fps @ 54K psi
- HI 1743
LO 1684
AVG 1718
SD 20
ES 59
Re: Share your 300 Blackout Loads here>
ES in the 50's
The M80 ball load looks like a fun load. The M2 has a little more room for powder. so you can get a tad more FPS at the same PSI. and at close to or at 2000 FPS is a mean round. *I* would not want to get hit by one.. and they will penetrate like crazy.
The M80 ball load looks like a fun load. The M2 has a little more room for powder. so you can get a tad more FPS at the same PSI. and at close to or at 2000 FPS is a mean round. *I* would not want to get hit by one.. and they will penetrate like crazy.
Long distance, the next best thing to being there!
Re: Share your 300 Blackout Loads here>
Yeah, I load with an RCBS Chargemaster that unfortunately is just about right in front of the window-mounted A/C in the basement. Probably about an 0.1-0.2 grain fluctuation either way right now. Can't wait till I get to turn that thing off. I'll be testing the 150 Nosler Ballistic Tip on Monday, maybe the Hornady 150 FMJ too. If I can get a 150 up to 2000 that would be a good go-to load.JohnInNH wrote:ES in the 50's
The M80 ball load looks like a fun load. The M2 has a little more room for powder. so you can get a tad more FPS at the same PSI. and at close to or at 2000 FPS is a mean round. *I* would not want to get hit by one.. and they will penetrate like crazy.
- Maryland_Shooter
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Re: Share your 300 Blackout Loads here>
Novel idea - move the scale? Just sayin'pomofo wrote:Yeah, I load with an RCBS Chargemaster that unfortunately is just about right in front of the window-mounted A/C in the basement. Probably about an 0.1-0.2 grain fluctuation either way right now. Can't wait till I get to turn that thing off. I'll be testing the 150 Nosler Ballistic Tip on Monday, maybe the Hornady 150 FMJ too. If I can get a 150 up to 2000 that would be a good go-to load.JohnInNH wrote:ES in the 50's
The M80 ball load looks like a fun load. The M2 has a little more room for powder. so you can get a tad more FPS at the same PSI. and at close to or at 2000 FPS is a mean round. *I* would not want to get hit by one.. and they will penetrate like crazy.
When I go to bed a law abiding citizen and wake a felon, by the stroke of the legislative pen, tyranny has arrived.
Post complete and accurate info when inquiring about loads, or be ignored.
Post complete and accurate info when inquiring about loads, or be ignored.
Re: Share your 300 Blackout Loads here>
Unfortunately that's not possible.Maryland_Shooter wrote:Novel idea - move the scale? Just sayin'pomofo wrote:Yeah, I load with an RCBS Chargemaster that unfortunately is just about right in front of the window-mounted A/C in the basement. Probably about an 0.1-0.2 grain fluctuation either way right now. Can't wait till I get to turn that thing off. I'll be testing the 150 Nosler Ballistic Tip on Monday, maybe the Hornady 150 FMJ too. If I can get a 150 up to 2000 that would be a good go-to load.JohnInNH wrote:ES in the 50's
The M80 ball load looks like a fun load. The M2 has a little more room for powder. so you can get a tad more FPS at the same PSI. and at close to or at 2000 FPS is a mean round. *I* would not want to get hit by one.. and they will penetrate like crazy.
Re: Share your 300 Blackout Loads here>
Latest chrono results.
As before, all loads fired through a 16" 300 Fireball upper with carbine gas. Brass is Remington 221 Fireball. Primers are CCI 41.
1. Hornady 225 grain BTHP - COAL 2.240" - 11.6 grains Accurate 1680 - 5 shots - bolt held open on last shot
Quickload predicts 45K psi and 1316 fps
Quickload predicts 48K psi and 1339 fps
Quickload predicts 51K psi and 1362 fps
Quickload predicts 54K psi and 1385 fps
Quickload predicts 58K psi and 1409 fps
Quickload predicts 55K psi and 1846 fps
Quickload predicts 56K psi and 1857 fps
Quickload predicts 58K psi and 1867 fps
Quickload predicts 45K psi and 1713 fps
Quickload predicts 47K psi and 1735 fps
Quickload predicts 48K psi and 1756 fps
Quickload predicts 50K psi and 1778 fps
Quickload predicts 53K psi and 1800 fps
Quickload predicts 55K psi and 1822 fps
Quickload predicts 55K psi and 1957 fps
As before, all loads fired through a 16" 300 Fireball upper with carbine gas. Brass is Remington 221 Fireball. Primers are CCI 41.
1. Hornady 225 grain BTHP - COAL 2.240" - 11.6 grains Accurate 1680 - 5 shots - bolt held open on last shot
Quickload predicts 45K psi and 1316 fps
- HI 1122
LO 1110
AVG 1115
SD 4
ES 12
Quickload predicts 48K psi and 1339 fps
- HI 1201
LO 1150
AVG 1173
SD 21
ES 51
Quickload predicts 51K psi and 1362 fps
- HI 1196
LO 1155
AVG 1175
SD 15
ES 41
Quickload predicts 54K psi and 1385 fps
- HI 1220
LO 1194
AVG 1203
SD 10
ES 26
Quickload predicts 58K psi and 1409 fps
- HI 1234
LO 1204
AVG 1221
SD 11
ES 30
Quickload predicts 55K psi and 1846 fps
- HI 1747
LO 1714
AVG 1732
SD 13
ES 33
Quickload predicts 56K psi and 1857 fps
- HI 1753
LO 1730
AVG 1737
SD 9
ES 23
Quickload predicts 58K psi and 1867 fps
- HI 1762
LO 1737
AVG 1746
SD 10
ES 25
Quickload predicts 45K psi and 1713 fps
- AVG 1565
Quickload predicts 47K psi and 1735 fps
- HI 1637
LO 1580
AVG 1608
SD 25
ES 57
Quickload predicts 48K psi and 1756 fps
- HI 1631
LO 1585
AVG 1614
SD 18
ES 46
Quickload predicts 50K psi and 1778 fps
- HI 1629
LO 1608
AVG 1619
SD 8
ES 21
Quickload predicts 53K psi and 1800 fps
- HI 1654
LO 1601
AVG 1626
SD 22
ES 53
Quickload predicts 55K psi and 1822 fps
- HI 1644
LO 1640
AVG 1641
SD 1
ES 4
Quickload predicts 55K psi and 1957 fps
- HI 1891
LO 1853
AVG 1873
SD 14
ES 38
- Maryland_Shooter
- Silent But Deadly
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Re: Share your 300 Blackout Loads here>
Novel idea - move the scale? Just sayin'
Figures, easy solutions hardly ever are solutionsUnfortunately that's not possible.
When I go to bed a law abiding citizen and wake a felon, by the stroke of the legislative pen, tyranny has arrived.
Post complete and accurate info when inquiring about loads, or be ignored.
Post complete and accurate info when inquiring about loads, or be ignored.
- Maryland_Shooter
- Silent But Deadly
- Posts: 1747
- Joined: Thu Dec 22, 2011 9:12 pm
Re: Share your 300 Blackout Loads here>
pomofo,pomofo wrote:Latest chrono results.
As before, all loads fired through a 16" 300 Fireball upper with carbine gas. Brass is Remington 221 Fireball. Primers are CCI 41.
1. Hornady 225 grain BTHP - COAL 2.240" - 11.6 grains Accurate 1680 - 5 shots - bolt held open on last shot
Quickload predicts 45K psi and 1316 fps
- HI 1122
LO 1110
AVG 1115
SD 4
ES 12
When I run this in QL, I get different numbers, so what was the case trimmed to? I use 1.360 and the following numbers are the result:
36,867 psi
1,273 fps
When I go to bed a law abiding citizen and wake a felon, by the stroke of the legislative pen, tyranny has arrived.
Post complete and accurate info when inquiring about loads, or be ignored.
Post complete and accurate info when inquiring about loads, or be ignored.
Re: Share your 300 Blackout Loads here>
For these estimates I'm using a case length of 1.356, case capacity of 24.53 grains with the default weighting factor of 0.6. I think that was the initial case capacity measurement I made way back when. I'm also using version 3.5 (updated from 3.4) of Quickload. I know that I've seen variations of a few thousand psi between version 3.4 on my work computer and 3.5 on my home computer, but the discrepancy between your numbers and mine is a little odd. Your psi numbers, though, are more in line with what I've seen from Accurate's load manual.Maryland_Shooter wrote:pomofo,pomofo wrote:Latest chrono results.
As before, all loads fired through a 16" 300 Fireball upper with carbine gas. Brass is Remington 221 Fireball. Primers are CCI 41.
1. Hornady 225 grain BTHP - COAL 2.240" - 11.6 grains Accurate 1680 - 5 shots - bolt held open on last shot
Quickload predicts 45K psi and 1316 fps
- HI 1122
LO 1110
AVG 1115
SD 4
ES 12
When I run this in QL, I get different numbers, so what was the case trimmed to? I use 1.360 and the following numbers are the result:
36,867 psi
1,273 fps
ETA: Let me try to take a quick screenshot.
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