22br 80gr, varget, max load

[J P Brown]

Hi there.
I'm wondering if someone can tell me where I might find a maximum load for 80gr projectiles, varget, or 2208 Adi powder equivalent. And fed primers in an 8 twist. 22br Lapua brass. I'm starting with ten thou jump.
I know every rifle is different, I just want to be able to plan where about I am working up to.
It's my understanding these little cases can take quite some pressure, and may even be quite high in pressure without showing much sign of it.

Any help or tips would be appreciated, thank you.

 

[Chfcemerson]

I have a 22 dasher that I run 35 grains of H4350...no pressure signs and about 3380 fps.

 

[22BRGUY]

If you're stuck on varget ...ok, but would suggest trying IMR 8208 if it's available. Around 29.4 grs depending on temp does really sweet in my rifle but of course, work up slowly.

 

[J P Brown]

Thanks guys.
I'm not sure how much extra a Dasher has compared to a br.
I'm not stuck on any powder. I do want to use Adi powder though.
I just thought I'd start with 2208. But what ever works. The 8208 looks to be alot faster. Is that with 80gr projectiles?

 

[Terry]

"75 Hornady
A-Max Varget 29.5 MAX Rem 7.5 Lapua Std .435 3150 A nice 300m load with excellent accuracy and good BC."

From the 22BR tab on this site.

The http://www.accurateshooter.com/cartridge-guides/22br/ info is worth using.

You should hit your max before 29.5gr.

 

[J P Brown]

Thanks Terry.
I have read that many times, but it is good info.
I guess I was just hopfull someone else had done varget and 80s.
There seems to be still plenty of room in the case, I would like it more full, I have just loaded up to 30 grains for some test loads. I'm OK with pulling a few apart if I reach max before that.

 

[22BRGUY]

Thanks guys.
I'm not sure how much extra a Dasher has compared to a br.
I'm not stuck on any powder. I do want to use Adi powder though.
I just thought I'd start with 2208. But what ever works. The 8208 looks to be alot faster. Is that with 80gr projectiles?

I get how you're thinking. I could hardly believe it either at first but I remember a lady winning a big match here a couple years ago with a dasher, 105's and 8208. Then I also have a friend that I shoot with that shoots a 6BR. He was shooting varget and a couple other powders for years, but this year he was shooting 8208 in his rifle with 107 Nosler CC's and was thoroughly impressed. I decided to at least try it in my 22BR with 80.5 Bergers. After a couple ladder tests, I put together a 1.08 inch group for five at 400 yards with a 12 mph wind going on. it's no world beater yet, but darn good for this early on.
The amazing thing is that I was shooting the same exact amount of 29.4 grs. VVN 150 before that which is much slower but 8208 seems more consistent.

 

[boltfluter]

I have also had great luck with 8208 in my .22BR with an 75 A-max .
Fastest and most accurate load I have ever found for this rifle. Also, one of the most stable powders I have ever seen as far as temp sensitivity is concerned. Fills the case nicely and meters very well from a powder measure. What's not to like.

Paul

www.boltfluting.com

 

[J P Brown]

I think I might try the benchmark 8208. As recommended by you guys..... Just one question.....
I don't see it in a load manual, what's a starting charge?

 

[22BRGUY]

With 80's, if it were me, would start about 27.5grs and do a ladder test up in 3/10 increments.

 

[J P Brown]

Iv just shot my varget test rounds. 30gr gave me about 3030fps the primer has only just started to change shape, flatten a little.
Other than this no signs of pressure.
There was a fair difference between this fireformed brass and previous new brass. Maybe a grain and a half to get to the same velocity as new brass.
I will pick up more powder soon.

What velocity are you guys getting with 80's?

Edit, second look, the primers haven't flattened at all.