H1000 in a 20” 243?

[houser52]

Used in a 20”, 1:8, Tikka 243, 108gr. ELD-M, Starline LRP, CCI 200.

Think it’s too slow for a 20” with a lot of unburned powder, high ES, accuracy?

Worth trying or try something else?

 

[Karl B]

H1000 is the ticket in my 22" tikka with 108 eldm's. Picked up almost 100fps and better accuracy from h4350. Give it a try.

 

[slatebuilder]

Try it and see. We used H1000 with a 100 bullet in a 20 inch barrel.

 

[kad11]

H1000 is the ticket in my 22" tikka with 108 eldm's. Picked up almost 100fps and better accuracy from h4350. Give it a try.

What charge weight did you start at?

 

[Karl B]

Can't remember where I started. Probably 44 or 45 grains.

 

[Jimbee]

47 grainsH1000/108 eldm Lapua brass= 2803fps in a 17" Tikka.
EDIT
Corrected to 47 grains

 

[justin davis]

H1000 is the ticket in my 22" tikka with 108 eldm's. Picked up almost 100fps and better accuracy from h4350. Give it a try.

Interesting. I need to try some H1000 I guess. I use H4350 and N555 in my 24” 6 creed with 108 grain bullets. Extra speed would be sweet

 

[Karl B]

47 grainsH1000/108 eldm Lapua brass= 2803fps in a 17" Tikka.
EDIT
Corrected to 47 grains

47 is where I landed as well with lapua brass.

 

[houser52]

I have been loading 44 grains of H4831sc and only averaging 2700 fps but accuracy is good out to 400 yards. If I increase the charge by much I start to see pressure signs and accuracy goes down hill.

I’ll give H1000 a try and maybe it will give me a little more fps and still be as accurate.

 

[houser52]

Are you guys using standard primers or magnum with H1000?

 

[NWBLKTAIL]

I’ve been using H1000 47.5gr with a 108eldm and as others have praised, picked more velocity and more consistent groups than H4350. Not that H4350 was bad by any means.

Starline brass
CCI 200
22” Mcgowen barrel
243win 8TW

 

[Jimbee]

Are you guys using standard primers or magnum with H1000?

CCI standard lrp

 

[houser52]

CCI standard lrp

Thanks.

 

[Castle Rock]

No reason to use such a slow powder in 243, 4350 is the sweet spot

 

[menhaden_man]

Not as slow as H1000 but we just started playing with Superformance for my sons 243 with a 18” bbl. Getting 3,230 fps with an 80 gr TTSX, 48.0 grains (Barnes max is 48.6 I think). I know a guy that really know his stuff says he’s not had good luck with Superformance, but so far it’s not been bad. We were loading 90 gr cup and core bullets with StaBall last year.

 

[satchamo]

I wouldn’t mess with H1000 - it’ll work but it’s slow for shorter barrels. I would think you’d need 24 at least to take advantage of H1000. Go H4350. I get accuracy and speed from it in 243