RE15.5
- Thread starter 762willdo
- Start date
It works very well in the Dasher. Start around 32.5 for the 105s and around 32.3 for the 108s and work up. I'll bet you'll find something you like inside of a grain of each starting point. It starts getting a little warm in my barrels around 33.3 grs.
15.5 will give you speed and consistency. It is an excellent powder in the Dasher.
ETA - I'm using Alpha Dasher brass with RL 15.5. Fire formed Lapua has a bit more capacity. I'd still start my work up at 32.5-ish.
15.5 will give you speed and consistency. It is an excellent powder in the Dasher.
ETA - I'm using Alpha Dasher brass with RL 15.5. Fire formed Lapua has a bit more capacity. I'd still start my work up at 32.5-ish.
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I'm pretty sure you're going to end up with a full case and, perhaps, then some. 15.5 is a little slower than Varget and it is bulkier. Do you have a drop tube? If not, you might want to get one or make one. I use arrow shafts.New Alliant Reloder TS 15.5 Powder — Outstanding Test Results « Daily Bulletin
Outstanding New Powder from Alliant -- Reloder TS 15.5 New Product Review by DasherDude Alliant has devloped a new temperature-stable powder for long range applications.bulletin.accurateshooter.com
Got some 15.5 for a 6 BRA but haven't had a chance to try it out yet.
The good news is I don't think you can get enough in the BRA case to get in trouble. I like that in a powder.
NC/Br Shooter
Silver $$ Contributor
I bought 8 lbs of it last year at about this time. Was using it in 2 barrels. Last July 4th, I had shot my best 300 yard groups with 15.5. Shooting 105 burgers in a bra. Shot match with that one barrel and put it up. The other barrel was a slower twist barrel in bra, shooting 80 grainers with a compressed load. Shot lights out. Ran out of it and started using varget. Kinda wished I had waited and found more 15.5. Stuff gave amazing low SD, ES. Stuff is pretty good.
Mulligan
Silver $$ Contributor
A couple of years old but, might have some info that is of use to you.
Shot at 600 yards in Western Colorado (4800')
CW
shoot4fun
Gold $$ Contributor
Dasher? Lapua or Alpha brass?
Mulligan
Silver $$ Contributor
autoxforfun
Gold $$ Contributor
I run 15.5 in my Dasher with Alpha brass and 108 Hottensteins. My load is around 32.6g +-. Great powder.
33.4 with a 105 hybrid 
Mulligan
Silver $$ Contributor
Yep, it repeated.
Yes I ran it up to pressure, there is a thread in the forum with a bunch of that data.
I have a barrel that tuned at 33.5
That lower node is much more forgiving and aggs real well. The higher node will give you those little ones, if you hit it right, but the 4 target agg might not blow your skirt up.
CW
That doesn’t surprise me.
Yep, that's about right. Well, not 10% but it will get you more speed. You'll get 75 - 100 fps more out of it.
Yeah, but at ~33 grs. a pop, it's worth it!
I have 2 fairly well stocked LGS one sells it for 74.95 a pound and one sells it for 54.95 a pound……
You won't know until you try it . . .
And if anybody needs some RL 15.5, precision reloading had 1lb and 8lb this AM.
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