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Discussion in 'Long Range Hunting & Shooting' started by TXAoudadKlr, Apr 24, 2019.
makes me want to neck down and improve the shoulder of Lapua to a .308 and send it
I have one, just it wears a 1:10 twist
I've got and older Sako Finnbear in 264. Curious on how that works, and wondering if it will ever come out for my 220 swift / 22/250 for Varmints?
I got the article last night can you tell me where you are finding the twist rate info.... I haven't seen it.,. thanks. If the rates are correct then the 153 6.5 won't be a problem....but the 230 and 250 won't stabilize in most all standard 30s which come in 1 :10.
The 230 maybe in one of the super mags could get away with a 1:10. I’d lean to an 8.5 or faster.
6.5-300 with a 153 A-tip and (claimed) BC of .704? Yes please.
I’m just thinking that 230 out of a 300-338LMAI could be driven 3300FPS. That would run with the biggest of 338’s way the hell out there minus the weight, powder, recoil.
It's in a video on Hornaday's website called "A-tip in-depth overview" found here:
It's the longer of the two videos in their video library about the A tip.
The 230 is likely the better bullet for the 300 PRC and similar capacity cases. Better than the 250. But in the 300 LapuaAI the 250 would also be potent.
They claim in the video that the 250 was designed for the 300 PRC.
I've been waiting for what seems like forever for them to make a 300 grain .338... maybe they can pump one of these out in a 300+
250 out of the 300PRC, I feel 2700FPS might be generous for it. To me the 300 Norma would be a fantastic pair with the 250. Bit more HP but not a total fire breather like the Lapua improved, 300 Raptor or 300HCM
I suspect what that means is that it was made to stabilize in the saami twist for the 300 PRC which is apparently 8.5. But it robs too much velocity IMO.
The 230 has a higher form factor than the 250. I suspect that they have about the same nose profile. The extra 20 grains is just added length in the bearing surface which adds to BC but not really to down range ballistics because the heavier bullet is slower. The velocity advantage of the 230 about cancels out the BC advantage of the 250. Similar to the 215 and 230 Bergers.
Wasn’t there an Aluminum tip 338 by Hornady many years ago but was ahead of it’s time I guess before Long Range shooting really took off.