.243 load data

[Guest]

Archived from groups: uk.rec.shooting.game (More info?)

Does anyone have some good load data for lightweight .243 loads?

Using Sako Forester L579 with 19 inch barrel and 1/12 or 1/14 twist.
I'm looking for something up to 70 grain. Have tried 55 grain and 70
grain with Varget 95% max loads and working up to max before I give up
but some help would save messing about!

Any suggestions gratefully received.

Robbie.

 

[john]

Archived from groups: uk.rec.shooting.game (More info?)

hungryrob <hungryrob@hotmail.com> wrote in
news:86nim0dosrmbdvuggicv5a0o1gditqfo9j@4ax.com:

> Does anyone have some good load data for lightweight .243 loads?
>
> Using Sako Forester L579 with 19 inch barrel and 1/12 or 1/14 twist.
> I'm looking for something up to 70 grain. Have tried 55 grain and 70
> grain with Varget 95% max loads and working up to max before I give up
> but some help would save messing about!
>
> Any suggestions gratefully received.
>
> Robbie.

In my opinion there is no time saving alternative to reloading.
I could give you my load data for 60 grain .243” bullets, you could load
up half a dozen and find that the rounds are not sealing correctly or
for example I could give you my load data for 105 grain bullets and you
could load just one round and blow your arm off!
My advice is to stick with one powder, one primer and one type of case.
Move up the load data in 1 grain steps and reload three rounds in each
load step. Don’t try to rezero or anything like that. Just take a clean
sheet of a3 card out. Shoot your loads in to the card and place a circle
around each individual load.
Then take a good close look at each group, select the two tightest
groups and load up .5 grains either side. Test again and see if you get
any better groups.
Once you have found the tightest grouping, stick with it and forget it.
The chances are you’ll easily get sub 1” groups.
My recommendation (based on my .243”) is Federal gold primers, H4350
powder and Speer bullets. Cases don’t make that much difference to
accuracy in my tests. I have tested Fed, Lap, Win, Nor, Rem and other
cases. I might get an extra 0.3” +/- group size using different cases.

HTH

John

 

[Guest]

Archived from groups: uk.rec.shooting.game (More info?)

In message <86nim0dosrmbdvuggicv5a0o1gditqfo9j@4ax.com>, hungryrob
<hungryrob@hotmail.com> writes
>Does anyone have some good load data for lightweight .243 loads?
>
>Using Sako Forester L579 with 19 inch barrel and 1/12 or 1/14 twist.

I'd be surprised if it isn't a 1:10 inch twist. Have you measured it?

>I'm looking for something up to 70 grain. Have tried 55 grain and 70
>grain with Varget 95% max loads and working up to max before I give up
>but some help would save messing about!

In Winchester Model 70:

Nosler B/Tip 70gn (exceptionally accurate)
RL-12 38.0gn, Federal 210, Rem case, 3,300 fps from 26" barrel
N133 36.5gn, Federal 210, Rem case, 3,250 fps from 26" barrel

Nosler Partition 85gn
N160 46.0gn, Federal 210, Lapua case, 3,150 fps from 26" barrel

Sierra BTSP 85gn
N160 45.0gn, Rem 9-1/2, Rem case, 2935 fps from 26" barrel


In Valmet 412 (with generous freebore)

Hornady SSP SP 80gn
N160 47.5gn, Rem 9-1/2, Norma case, 3030fps from 24" barrel
N140 38.0gn, Rem 9-1/2, Norma case, 3044fps from 24" barrel

Lapua 85gn SP
N140 36.0gn, Rem 9-1/2, Norma case, 2750fps from 24" barrel

Speer 80gn SP #1211
N160 47.0gn, Rem 9-1/2, Norma case, 3090fps from 24" barrel

--
--Jonathan

"Justice is open to everybody in the same way as the Ritz Hotel."
Judge Sturgess, 22 July 1928

 

[Guest]

Archived from groups: uk.rec.shooting.game (More info?)

On Tue, 12 Oct 2004 13:55:57 GMT, Jonathan Spencer
<jms@NOTMEjonathan-spencer.co.uk> wrote:

>>
>>Using Sako Forester L579 with 19 inch barrel and 1/12 or 1/14 twist.
>
>I'd be surprised if it isn't a 1:10 inch twist. Have you measured it?

Thanks Jonathan. I fancy the 70grain load so will try it out. I was
told it was a 1:12 or 14 but you're right. I checked on the Sako MSN
group and it is 1:10.

I'll keep your load data on file for the others

Very grateful for the advice.

Robbie