Wondering what is out there in lighter than 400 grain .423 bullets?

I have seen only the North Fork on their site.

Any info. on bullets, North Fork or others/ loads with lighter bullets would help.

Many Thanks
HBH

320 Gr. GS Customs

The 340grNF is a great bullet. There is also the 350grWoodleigh. The NF has the advantage w/ a better BC so it would be my choice @ 2500fps+ for a PG load.

2500 fps with the 340-grain North Fork is a woosy load.
2700 fps with that bullet is better:

The first shot was a fouler.
The next three grouped well enough that I went to 300 yards for the next three:





There was no change in the scope settings.
There was little wind.
Elevation change from 100 to 300 yards should have something to do with the BC:
100 yards (+3.0")
300 yards (-7.75").

Velocity of 2706 fps was at 5 yards from the muzzle.

You can figure the BC using the above groups at 100 and 300 yards, and let me now.
Temperature was 54 degrees F.
Elevation was 330 feet above sea level in Kentucky.
Barometric pressure and humidity unknown. Assume standard conditions. Close enough.

Rip

Nice group.

Do I read that right 1 - 10 twist? And if so how did it do with 400 grain bullets?

Which brings up the question what is the best twist rate for the 404?

Many Thanks

HBH

Hawk does some 300-gr. with a couple of different profiles.

Not to get too off course here, but would that 340-gr. North Fork be a good Cape Buff bullet loaded in the 10.75x68?

I have used Hawks 300gr with the .025jacket in my 450/400 at @2330fps on deer and several pigs.

All were bang flops.

If you want to drive them faster Hawk will make them with a thicker jacket.

I emailed Barnes about two weeks ago about 350 gr bullets in this caliber and got a standard reply of "we'll look into it". The 350 gr TSX in the 416 Rem Mag is just about perfect and I beleive it should be in the 404 as well. Though the 400 gr TSX opens some at 2200 fps, based upon my testing, I'd like just a bit more expansion that I believe the 35o gr bullet would give.

quote:

Originally posted by HBH:
Rip

Nice group.

Do I read that right 1 - 10 twist? And if so how did it do with 400 grain bullets?

Which brings up the question what is the best twist rate for the 404?

Many Thanks

HBH

HBH,
Welcome.
Thank you for actually reading the scribbles.
I read them this time too. I see that the barometric pressure was there. Just no humidity.

Yes, 1:10" twist McGowen.
Same barrel as CZ put on their 404 Jeffery, except mine is stainless.

The most commonly encountered TWIST on 404 Jeffery barrels is 1:14".
The CIP stated standard for the 404 Jeffery is: 1: 420.00 mm = 1: 16.535"

My 404 Jeffery African Sheep Rifle, with 1:10" TWIST, ought to be even better with 400-grain bullets, less excessive, eh?
It is sub-MOA with Woodleighs, but North Fork bullets are more accurate.
Good glass bedding and "more than enough twist" is certainly no detriment to hunting rifle effectiveness within 500 yards.



Here is another interesting bullet (320-grain GSC HV) that I have so far only tried over the chronograph using a .423/.338 Lapua Magnum:





The .423/.338 Lapua Magnum was a "deadend."
It offers no benefit over the 404 Jeffery, but takes up more room in the magazine box.

2800 fps with the .423/320-grain GSC HV is no problem in a stout 404 Jeffery rifle.

BigBullet,
The old Barnes X was available as 350-grain .422" diameter.
Ray A. graciously dumped the last of his supply with me.
I am a bullet whore.
I am thinking of joining the local chapter of Bullet-holics Anonymous.

"Hi, my name is Rip."

quote:

Originally posted by RIP:
2500 fps with the 340-grain North Fork is a woosy load.

Yeah, but 340grNF @ 2550fps is about all I want to shoot for a "long range" load. It does quite well @ 300yds. I can stay around 3" from a rest.

Fred,
Very sensible of you.

A BC of .325 for the North Fork .423/340gr softpoint gives a pretty good fit for my targets.
If velocity is 2706 fps at 5 yards, then my MV is 2720 fps.
If one assumes an MV of 2520 fps for the same bullet, and both loads are sighted to shoot 3" high at 100 yards:

2520 fps load is then zeroed at 209.1 yards, -10.48" at 300 yards.
2720 fps load is then zeroed at 226.8 yards, -7.21" at 300 yards.

KE in ft.lbs. at 0, 100 200, 300 yards:

2520 fps load ... 4794, 3830, 3028, 2366
2720 fps load ... 5585, 4497, 3581, 2822

Not a whole lot of difference there, other than the degree of kicks to be obtained.

Thanks for the info you guys!

I am thinking hard on a 404 wanted to see the versitility of these lighter bullets. It seems like perhaps the 404 could be a one rifle safari candidate.

Has anyone had Kreiger do a 1 - 14, it seems maybe I read that they will do that. I did see they listed 1 - 16.

Many Thanks

HBH

My 404 has a 1-14 in twist (Australian MAB barrel)and I have just ordered some of the 320gn GSC HV bullets to try, alongside the 400gn Woodleigh and the RWS solid which both shoot very well indeed. I also think this could make the 404 a one rifle safari option. At the present it only has a Williams bridge mounted aperture but I was thinking of getting an express island made to qd a scout scope on for the 320gn GSC HV bullet which I think will make a 300yd capability.

Von Gruff.