Checking to see what the favorite powder for the experienced Grendel reloaders is; specifically for barrel lengths 16" - 20" and 120 gr. bullets. I have some TAC on hand (which I can also use on .308) but would like to try an alternative...
Favorite Powder
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Originally posted by Goju View PostChecking to see what the favorite powder for the experienced Grendel reloaders is; specifically for barrel lengths 16" - 20" and 120 gr. bullets. I have some TAC on hand (which I can also use on .308) but would like to try an alternative...
2520 has given me the best velocities and most consistent performance. Velocities are significantly higher than any other powder -- faster or slower. Some say velocity doesn't mean anything and with most cartridges this is probably true. However with the Grendel you are already starting out at the low end of the performance spectrum so further losses in velocity equate to major problems given some winds or a requirement to estimate ranges -- both past 300.
LR1955
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Originally posted by LR1955 View PostGJ:
2520 has given me the best velocities and most consistent performance. Velocities are significantly higher than any other powder -- faster or slower. Some say velocity doesn't mean anything and with most cartridges this is probably true. However with the Grendel you are already starting out at the low end of the performance spectrum so further losses in velocity equate to major problems given some winds or a requirement to estimate ranges -- both past 300.
LR1955
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Originally posted by bwaites View PostIf you live in a very warm area, though, I've found 2520 to be temp sensitive.
Its probably turned into my favorite winter powder, but I have to reduce loads or blow primers in the summer.
IMR 8208 has been working great for me. 100 NBTs & 123 SMKs. Good accuracy & velocity.NRA life, GOA life, SAF, and TSRA
"I ask, Sir, what is the militia? It is the whole people, except for a few public officials. To disarm the people is the best and most effectual way to enslave them."
George Mason, co-author, 2nd Amendment.
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Originally posted by txgunner00 View PostI've heard this from a number of sources. No experience myself though.
IMR 8208 has been working great for me. 100 NBTs & 123 SMKs. Good accuracy & velocity.
Do you have some velocity and load data with IMR 8208 that you would be willing to share? The data on Hodgdon's site looks promising, but I haven't seen any real world data.
Thanks,
PA
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Originally posted by bwaites View PostIf you live in a very warm area, though, I've found 2520 to be temp sensitive.
Its probably turned into my favorite winter powder, but I have to reduce loads or blow primers in the summer.
I use a lot of Varget with my .223's and would really love to find a working load with it. But alas, it eludes me. It is very temperature neutral.
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Originally posted by PA_Allen View Posttxgunner00,
Do you have some velocity and load data with IMR 8208 that you would be willing to share? The data on Hodgdon's site looks promising, but I haven't seen any real world data.
Thanks,
PA
100 nbt- 30gr- 2865 avg
I believe these are over book max but I worked up to them. No pressure signs for me. YmmvLast edited by txgunner00; 03-19-2011, 05:59 AM.NRA life, GOA life, SAF, and TSRA
"I ask, Sir, what is the militia? It is the whole people, except for a few public officials. To disarm the people is the best and most effectual way to enslave them."
George Mason, co-author, 2nd Amendment.
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I have been using mostly W748. I have found a load of Tac that shoots to the same point of impact, so that is handy. Accuracy, and point of impact are the same, but usually, W748 is easier to find.
123 Scenar
CCI 450 primer
Lapua cases
2.260 C.O.A.L.
30.3 grains of W748 (30.5 is Max, so work up slowly)
I use this load in both 18, and 19.5 inch barrels.
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Originally posted by PA_Allen View Posttxgunner00,
Do you have some velocity and load data with IMR 8208 that you would be willing to share? The data on Hodgdon's site looks promising, but I haven't seen any real world data.
Thanks,
PA
New Rifle
AA (ER Shaw) 24" SS Barrel .300 Neck
42 Degrees F.
New Hornady Brass
Remington 7 1/2 Primers
Nosler 100gr BT
2.27 COL
28.5gr IMR 8208XBR = 2701 fps Avg / SD = 12 best group of all that day's loads.
29.0gr IMR 8208XBR = 2738 fps Avg / SD = 6
29.5gr IMR 8208XBR = 2795 fps Avg / SD = 8
30.0gr IMR 8208XBR = 2821 fps Avg / SD = 5 light pressure signs
Hoot
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Originally posted by GojuRegarding the prior comments to temperature sensitivity, which of the "Grendel" powders are least temp sensitive, and which are the most sensitive?
-michaelmewLast edited by Guest; 03-21-2011, 05:49 AM.
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