i shoot BERGER 230 in a 26" 300 wm 1/10 and the sie 220
i shoot BERGER 230 in a 26" 300 wm 1/10 and the sie 220
I ran them in a 9.5 twist at 2840, but I could not get them to shoot as good as the berger 230s. Maybe I need more twist. It is a very good looking bullet. A 280 freebore works great for it.
I think these new high BC bullets have narrow velocity windows that they like, same with seating depth.I ran them in a 9.5 twist at 2840, but I could not get them to shoot as good as the berger 230s. Maybe I need more twist. It is a very good looking bullet. A 280 freebore works great for it.
I can understand that. I built a 243 with 7" twist with the specific intent to shoot Sierra's 110 Matchkings. I tried a little, didn't quite get there with it, then tried the 115gr DTAC and hit a load that grouped immediately. Doesn't mean that 110 won't shoot, it's just hard to want to pursuit it since I have another load that is already working.I cannot say that the bullet will not shoot, maybe I just needed more testing, but the 230s shot so good that I just let that bullet go. Ill let someone with more patience try them.
How did the 9 twist work for you with your 300 NM build with the 230s ?Understood, but these new 230's from Sierra have a very long ojive and not as much bearing surface as the 230 Berger or 220 SMK.
I went 1-9 twist in hopes that I'll get them to shoot well in the 300 NM Imp. knowing that if the new 230 gr. Sierra doesn't shoot well then I have 230 Berger's to try as well & I know that the 230 Bergers are going to be plenty stable. - I'll be trying them in a 5R and a conventional 4 groove 30" barrel. - also in a 30 Nosler, 30" conventional 4 groove 1-9 twist, again knowing that I'll have Berger 230's as a good contingency.
If these new 230 Sierras don't shoot I'm not going to fiddle with them & waste a bunch of barrel life when Berger's will. I was impressed with the bullet when it was released on the market so I picked up a couple of 50 round boxes of them to check out and to build some dummy-rounds so that I could properly spec the free-bore of the reamers for my chambering jobs. (Because i want neck-turn chambers and optimum seating depth)
- Ron -
I'll send you a P.M.How did the 9 twist work for you with your 300 NM build with the 230s ?
Sounds good.I'll send you a P.M.