H380 in a dasher

[kountryboy2]

Has anyone tried it? If so how did it work. I've tried R15,varget,8208 and I'm not real happy with any of those powders so far.

 

[dkhunt14]

What is it doing that you aren't happy? Usually they are the go to powders. What bullet, where are you seating them, what freebore and how much powder and what velocity? Matt

 

[kountryboy2]

Using both a Sierra 107 and 105 Berger hybrids. Been using br4 for a primer. .125 free bore and rl15 is right at 2900. Best group so far has been 1/2. 8208 at 2835-2850 is also only 1/2 groups. This weekend I'm going to go .010 into the lands and see what happens. Using 8208 is easy to have my es in the 5-7 range . With 8208 I'm at 30.1 on the powder charge. Using the new Norma brass and I'm real happy with it.
Barrel is 1-8 26" cut rifling.

 

[Jet]

Keep working with those two powders but switch to CCI 450s or 400s. Give Varget or H4895 a try as well.

Good shoooting

Rich

 

[AckleymanII]

Let us know how the H380 works out.

 

[Mulligan]

Seating depth is a good place to look for answers.
CW

 

[JEFFPPC]

Seating depth is a good place to look for answers.
CW

I agree with you Mulligan. Be sure all loaded rounds are within + or- .001. Might help to get a tuner and learn to use it also, will save a lot of wear on your barrels. I use Bob Greens and have one on all my competition rifles.

 

[dkhunt14]

Using both a Sierra 107 and 105 Berger hybrids. Been using br4 for a primer. .125 free bore and rl15 is right at 2900. Best group so far has been 1/2. 8208 at 2835-2850 is also only 1/2 groups. This weekend I'm going to go .010 into the lands and see what happens. Using 8208 is easy to have my es in the 5-7 range . With 8208 I'm at 30.1 on the powder charge. Using the new Norma brass and I'm real happy with it.
Barrel is 1-8 26" cut rifling.

These velocities seem to be a little slow. Could be barrel or other things. Some barrels won't shoot the Hybrids. Especially the 8 twist. Seems 7.5 is better. My 8 twists usually love the Hunting VLD. About .010 in the lands with VARGET and BR4. I have a little more freebore but can usually shoot 3025 plus. Matt

 

[birdog]

I have wanted to try H-380 because it meters so well. It has a burn rate very similar to RL-15 which makes me think that it might work. I would be worth a try. I have stuck with the standards, Rl-15 & N-303-B

 

[jamesdmock]

If you are using an 8 twist barrel, the Hybrids may be on the ragged edge of stability. I have shot three different Dasher barrels...... an 8 twist Krieger, an 8 twist Brux and a Bartlein Gain Twist (8.25-7.75). I could not get the two 8 twist barrels to shoot the Hybrids, but the gain twist Bartlein loved them. If a Dasher won't shoot premium bullets with Varget, Reloder 15 or H4895, it is, in my opinion, time for a new barrel. Good shooting...James

 

[LarryDScott]

107 Sierras liked a .005-.0020 jump from just a light touch,
in Rifles I have owned. LDS

 

[dmoran]

In years past, I tested/tried both H380 and H414 in a couple 6Dasher barrels with 105/108 class bullets. Both produced +3000-fps before pressure and both produced respectable accuracy. My own reasoning for not using either was 3 part that I seen with both:
- temperature sensitivity
- un-burned powder fouling
- marginal in aggregate capability with out chasing the charges
Of the two, H414 produced some what better performance and was more stable in warm/hot temperatures. If I was going to use either, I would plan on adjusting the powder charges to the daily temperature/forecast.
My own 2-Cents
Donovan

 

[ASbobcat]

Has anyone tried it? If so how did it work. I've tried R15,varget,8208 and I'm not real happy with any of those powders so far.

You will have a hard time finding a "ball" powder that can consistently deliver better than .5moa accuracy. By the nature of their grain geometry they are regressive burning and require specialized burn deterrent coatings. These coatings cause too many "issues" to list here. These powders are normally used in applications where velocity is paramount and "close is good enough" in accuracy. A good example is military applications where maximum terminal energy is important and 4moa or better is adequate.
Some find H380 to be a partial exception to the rule because those little "ball bearings" result in very consistent thrown charges.

 

[Bkluke]

If it were me, I would speed it up between 2950 and 3000 fps. Then fine tune seating depth. I agree with Matt.

 

[ballpowder]

In a large cased 22 I have found that H380 is quite a bit slower than RL 15. Whole different range. In that cartridge BLC-2 is much closer and AA2520 is nearly identical. IMR 4320, IMR 4064, Varget, AA 2520, BLC-2, Win 748, N-140 are all so close it's amazing

 

[swd]

In a large cased 22 I have found that H380 is quite a bit slower than RL 15. Whole different range. In that cartridge BLC-2 is much closer and AA2520 is nearly identical. IMR 4320, IMR 4064, Varget, AA 2520, BLC-2, Win 748, N-140 are all so close it's amazing

I haven't tried BLC-2 on a Dasher or BRX but I'd be surprised if it didn't perform very well. Definitely in the right burn rate and an extremely accurate powder. Unfortunately temp sensitivity will always be an issue.