Which powder for SHORT barrels: Lil' Gun, H110, other?

[akxx]

I've heard that Lil'Gun generally runs lower pressures for the same velocity, but that pressure spikes quickly and suddenly when you reach that threshold. Also heard that Lil'Gun seems to be temperature sensitive. However, Hodgdon claims it has "20+ years" of development over the H110. Whatever that means.

For short barrels (7-8"), is there a consensus on a preferred powder: I would like to maximize velocity from the short barrel (don't need absolute max, but faster than Ramshot X-Terminator would be nice), and I value temperature insensitivity. Should I also be looking at Reloader 7?

[-k-]

The same powder that gives the best velocity in a long barrel will give the best velocity in a short barrel.

[constructor]

I've heard that Lil'Gun generally runs lower pressures for the same velocity, but that pressure spikes quickly and suddenly when you reach that threshold. Also heard that Lil'Gun seems to be temperature sensitive. However, Hodgdon claims it has "20+ years" of development over the H110. Whatever that means.

For short barrels (7-8"), is there a consensus on a preferred powder: I would like to maximize velocity from the short barrel (don't need absolute max, but faster than Ramshot X-Terminator would be nice), and I value temperature insensitivity. Should I also be looking at Reloader 7?

RE7, 4198, 4227, 296, lil gun, H110, Norma 200, most of those burn 95% in a 8" barrel
I set the parameter to 58,000psi with a 110gr bullet, thats why is says dangerous load out to the right.
charges are in the low 20gr range.

QL output
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Norma 200 101.3 ***24.4 **1.58 2102 93.6 58125 19164 0.571 !DANGEROUS LOAD-DO NOT USE!
Winchester 296 82.2 ***20.6** 1.33 2096 98.0 58125 18157 0.570 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder- 7 98.2 ***22.1** 1.44 2073 98.4 58125 17811 0.583 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4227 98.7*** 21.1 **1.37 2069 97.2 58125 16929 0.551 !DANGEROUS LOAD-DO NOT USE!
Hodgdon Lil'Gun 82.3*** 19.9** 1.29 2067 100.0 58125 15999 0.572 !DANGEROUS LOAD-DO NOT USE!
Accurate 5744 92.5 ***20.1 **1.31 2066 94.7 58125 17339 0.554 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H110 83.4*** 20.9 **1.35 2060 99.4 58125 16821 0.571 !DANGEROUS LOAD-DO NOT USE!
Accurate 1680 92.0*** 23.1** 1.49 2057 90.0 58125 17478 0.554 !DANGEROUS LOAD-DO NOT USE!

[akxx]

Constructor: thanks!!

I know the charges would change for a 90-grain pill, but would the '% burnt' change?

I would also imagine that the velocity 'kings' would also reign for the 90-grainers as well?

[constructor]

90gr'ers first numbers % of fill, 2nd is charge, 4th is vel, 5th % of burn

Winchester 296 83.0 ** 24.8 * 1.61 2344 ^96.4 58125 22894 0.512 !DANGEROUS LOAD-DO NOT USE!
Norma 200 102.2 ** 29.4 * 1.90 2342 ^91.3 58125 24020 0.515 !DANGEROUS LOAD-DO NOT USE!
Hodgdon Lil'Gun 83.2 ** 24.1 * 1.56 2321^ 100.0 58125 20669 0.514 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4227 99.5 ** 25.3 * 1.64 2318^ 95.5 58125 21311 0.494 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder- 7 99.3 ** 26.7 *1.73 2318 ^97.0 58125 22605 0.524 !DANGEROUS LOAD-DO NOT USE!
Accurate 5744 92.7 ** 24.1 * 1.56 2311^ 92.6 58125 21441 0.493 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H110 84.1 ** 25.1 * 1.63 2308^ 98.4 58125 21327 0.512 !DANGEROUS LOAD-DO NOT USE!
IMR 4227 98.3 ** 25.0 * 1.62 2301^ 94.6 58125 20799 0.493 !DANGEROUS LOAD-DO NOT USE!
Accurate 1680 92.5 ** 27.7 * 1.79 2299^ 87.7 58125 21732 0.497 !DANGEROUS LOAD-DO NOT USE!
Accurate 2200 103.9 ** 29.3 * 1.90 2291^ 82.7 58125 21896 0.496 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N110 94.6 ** 22.3 * 1.44 2284 ^100.0 58125 18978 0.507 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4198 105.0 ** 27.4 * 1.78 2281 ^85.9 58125 21017 0.494

[akxx]

Cool--thanks.

I had heard that, despite H110 and W296 *supposedly* being the same powder (which doesn't appear to be the case from the performance models above), that H110 seemed quite sensitive to temperature changes.

Anyone have any experience as to the temperature sensitivity of any of these top powders, esp Norma 200, W296, or RE-7?

[Jack-O]

quick load give data based ont he powder burn rates they have. those two powders may actually be the same, but it wont show in QL due to different data.

you wont know for sure unless you try tho.

Norma 200 looks like it's a winner in any event. I know in my computer loading experimetns for the 6.8 that powder always seems to be in the top 3 for velocity and lower pressures and case fill ratio.

Ramshot exterminator is another one to look at real closely too.

[QuicksilverJPR]

Cool--thanks.

I had heard that, despite H110 and W296 *supposedly* being the same powder (which doesn't appear to be the case from the performance models above), that H110 seemed quite sensitive to temperature changes.

Anyone have any experience as to the temperature sensitivity of any of these top powders, esp Norma 200, W296, or RE-7?

I've read a lot of interesting things about the H110/W296 "problems", and have come to the conclusion that they are the same base powder, but they may have different chemicals added to control flash/tem sensativity, etc etc etc. The loads and performance are all 95% matchups between them, however...