.243 Win and 115s with slower burn rate powders.

[ezee]

New comp gun. 243 , rem 700, 24" 1:7.5 tw Krieger. Working up loads. Currently 115 DTAC / 41.8gr H4350. Running 2950, 1/2 moa gps @ 100. Just curious as to others experience with 107 and 115 and slower burners ie. ( Retumbo, H-1000, H-4831, RL-22 or 25). Load data looks promising velocity wise. How do they shoot?

 

[Aimsmall55]

Re: .243 Win and 115s with slower burn rate powders.

My buddy runs the 115 dtacs with r25. Ga P build. Very good load

 

[Rookie]

Re: .243 Win and 115s with slower burn rate powders.

47.3gr of RE25 works well in cold temps. 46.0gr in summer time.

 

[shoot4fun]

Re: .243 Win and 115s with slower burn rate powders.

Stick with H4350 on the DTAC. I hit a node in OCW that gives me 3050 FPS with Lapua brass. Barrel is a Brux 1 in 7.5 twist at 26".

 

[Walt K]

Re: .243 Win and 115s with slower burn rate powders.

Shot 105 Lapua Scenar , Hornady 105 A Max, SMK 107 using 44.5gr.of H1000 in a Lothar Walther ,28', SS, 1 in 8 twist barrel and had very good results. 3/4 or less MOA. Best results with Lapua. Don't recall speed.

 

[sawgunner2001]

Re: .243 Win and 115s with slower burn rate powders.

I had best accuracy and speed using H1000. I tried H4350 and couldn't get the velocity where I wanted it. Re25 gave decent speed and accuracy, but wasn't temp stable. However, I was using a 27" barrel.

 

[bward]

Re: .243 Win and 115s with slower burn rate powders.

I have a nice load with 4381SC. Couldn't get 4350 to shoot, so I tried 4381 and had a lot better luck.

 

[95LTZ]

Re: .243 Win and 115s with slower burn rate powders.

What Rookie said on the 115 DTACS & RL25.
In addition I used 47.5 grs. Retumbo which gave me bragging small groups but it was an the slow side for .243 shooters. That ran 2787 fps out of a 24.5 " bbl. Absolutely no pressure signs in 103 degree summer heat. If you can live with only 2787 fps I really like it.
Semper Fi

 

[Starbuck]

Re: .243 Win and 115s with slower burn rate powders.

This is working for me, for 12" steel out to 800 yds:

VV N-165
44.5 gn
3000 fps
26" Krieger 1:8
AIAE MKII
115 DTAC
Little if any temperature sensitivity, unlike RL-25.

 

[ezee]

Re: .243 Win and 115s with slower burn rate powders.

Thanks guys! I have got H-1000, 4831-sc, and RL-25 on hand. I'll give a try.
Good shooting!