Looking at the nature of GsCcustomHV projectiles, we can expect them to shed their petals around the 2600fps mark...
the question is,
you load 30-06 with 160gnHV(1:10 twist polygonal bore)for about 3000-3100mv.
you also load .33806 200gnHV at 2800mv,
now you go to smack an elk at say 250yds,
the 160hv is still travelling at petal sheering speed,
the .338 200hv is below petal sheering speed at the same distance.
can one expect more/same/less? penetration with the petaless.30cal-160hv, over the petal intact.338-200hv with its greater parachute effect?
Gerard, if you happen to tune in, is it possible/technically viable to have HV projectiles ordered with a shallower than typical nose cavity,that still offers sufficient mushroom,but minimises weight loss when petals sheer?
For example, is their any problem with making the cavity stop somewhere around the depth of the redline?
Objective is to have a most effective&versatile sub 8lb field ready rifle, that offers a good balance of bore size,power,penetration,range,trajectory,while trying to minimise recoil... think not only 30-06.but also a short action 23"bl 300RCM pushing the 160hv.

I have shot lots of game with them and don't know if they shed petals or not as they shoot through everything except lengthwise on cape buffalo...I have recovered a few of them on buffalo and some were expanded and some shed the petals, all did their job as expected.

The would channals are large and severe but they do not bloodshot as much as standard soft point bullets as a rule..

I prefer them to any Barnes bullet or any other monolithic I have used..They always seem to perform as advertised.

With the closure of North Fork, I see the GS Custom as one of the best out there today. They also have a wonderful flat nose solid that works to perfection and kills very well indeed.

Woodjack,
I only saw this today so here goes with a late reply.

We determine the correct bullet for a caliber by considering several parameters such as probable muzzle velocity, probable impact speed, case capacity, freebore and leade, col, availability of powder (burn rates) and so on. We have already done much experimentation with nose shapes and cavity volumes to optimise performance in line with the bullet/caliber combinations as we recommend them.

quote:

Objective is to have a most effective&versatile sub 8lb field ready rifle, that offers a good balance of bore size,power,penetration,range,trajectory,while trying to minimise recoil...

We spend up to several months optimising a bullet before releasing it for use and testing includes range tests first and then field tests with a view to induce failure. When a bullet is as good as we can make it, at all probable distance applications, the public is given access to it.

In a 30-06, use the 150gr HV it it is 1:10" twist.
In a 300RCM also use the 150gr HV (72gr case capacity)
In a 338-06 use the 180gr HV.

I developed the 180gr HV for the 338 in a 338 Sabi rifle which is for all purposes the same as a 338-06.

Changing cavity volumes will simply move the bullet away from it's optimised state to a place we probably tried and discarded. Reducing the hole depth is not a solution as we have seen with other manufacturers who currently use shallower and smaller volume hollow points.

Thanks Gerard,

My idea for the 200hv was to use it inplace of 210np or 210barnesX,.. any particular reason you recommend the 180hv instead?...(your Wsite also shows loads for 200hv.338-06)

I apologize to hijack a little, but I have a 338 federal with a 1:10 twist 24" barrel from Lilja.

Would the 180's be the right choice for me as well? I'm currently using the 185 TSX and they shoot very well but I'd like to try the GS bullets since the quality control looks more impressive then Barnes as of lately with the plugged tips etc...

Would I expect the same velocity as I am achieving with the TSX's?

Has anyone recovered one of these bullets after travelling at a lower velocity?

Thanks,

Woodjack,
As is usual with monos, it is the lighter bullets that perform beyond expectation. The 200gr .338 HV is a good bullet but it came about as a result of my work with a 1:12" .338 Lapua Magnum. It was the starting point for the development with the 338 Sabi (338-06) and, when case capacity and the somewhat shorter probable shooting distance is considered, the 180 comes out a short head in front.

beretta96
The 338 Federal is new to me but from what I have seen the case is smaller than the 338-06 and I would use the 180gr 338 as well. The 1:10" twist will stabilise up to 225gr in an expanding mono but it will put a serious crimp on case capacity.

Depend on complete expansion from 1600fps impact speeds. Recovered 338 HV bullets are rare and all I have to show is a slew of dead animals. In fact, when we recover bullets from a particular caliber / bullet / game animal on a regular basis, I regard the combination of caliber and bullet as a a bit light for the application. Broadside shots should always shoot through. If they do not, the combination is inadequate for the specie. (My 2c worth)

Gerard - are you saying that a 338-06 will not stabilise a 250 grain monometal like GSC or Barnes? Was I wrong to have purchased bullets in this weight class for my 338-06 with 1:10 twist?

Glad to see this thread as I was thinking of loading some HVs in my 30-06... Also, not meaning to hijack this thread, Gerard, have you had an opportunity to generate a starting load for the 338-378 Weatherby??

Ken....

adam2,
The 1:10" .338 barrel will technically stabilise a 225gr HV and the 250gr HP bullets. The 250gr HP will be better at longer ranges than close by. This is not compatible with what one would do with a 338-06. These long bullets also eat a lot of case capacity. Not an issue with a 338 Lapua or Win Mag but dfinitely an issue with a 338-06.

If you bought our 225 HV or 250gr HP, we will gladly arrange an exchange for the more suitable 180gr or 200gr bullets. You will get much more versatility from your 338-06 with the 180gr bullet, as I have.

Heat,
I get this feeling that I owe you email. If that is so, I apologise, I am so far behind with my paperwork I am developing a guilt complex about it. Which bullet / twist rate are we talking about?

quote:

Originally posted by Gerard:Heat,
I get this feeling that I owe you email. If that is so, I apologise, I am so far behind with my paperwork I am developing a guilt complex about it. Which bullet / twist rate are we talking about?

No worries Gerard, I've sent you a PM but if you see this first the 338-378 is a Weatherby Accumark with a 1 in 10 twist... I tend to use 225 grain bullets...

Ken....

if you use nosler partitions, you dont worry about loosing petals and on any thing bit dangourus game, they work just as well if not better than every thing else. i have 15 1 shot kills on elk with a 210 grain in 338 win mag.

its simple,shoot a 338 win mag with a nosler 210 and the problems solved. plus the 338 win mag is a std lenght caliber( same as a 30-06)

Mike I was not worried about losing petals,in fact sometimes I dont mind it in a monometal, yes the 338win210np is a good proven combo I like the cartridge verymuch,...but I dont think the 210np partition is the same kind of bullet as the 200hv, which IIRC, has been used to cull buffalo at 300m fired from 338win.
Cheers.

What has always been a source of amusment to me is how wonderful a cartridge the 30-06 is and how so many folks think they can better it...The 338-06, the 300s wont' change much in the hunting fields, with simular hits the results are always the same..

The difference in a 338-06 with a 250 gr. bullet and a 06 with a 220 is zilch in the killing fields. The 338-06 with a 200 gr. bullet and the 06 with a 200 gr. bullet is again equal in killing power.

The 06 when compared to the 300 magnums holds its own in killing power and comes very close in trajectory..

I know this is the last thing the magnum crowd wants to hear, but it is the unmentionable truth.

Now you know why I keep my horse tied out back, for a quick get away...

Ray,
I suppose when we(I) have time, we conjure up technical questions for the keyboard,
In reference to your above post,
>> typically folk can get near 2600mv200gn06', now if that was the weight one most commonly hunted with, id probably prefer a .338o6-200hv combo 2850mv(with its flatter trajectory&higher momentums for same powder burned-recoil)....I just found the .338win230fs2800mv had penetration way beyond expectation,to the point I can safely go a lighter mono in smaller case(.33806)and a lighter rifle(8lb)& still less recoil...
If I maintained 9.25lb 338win rifle weight, but in .338o6/200hv,... it would be even nicer-accurate to shoot....after repondering,,, something around 8.5-8.75lb field ready would be about spot on (probably a .590@25" tube)
now gettin back to the original post enqiury, would you refer the 30.06 sending a lighter HVmono screaming from the muzzle above 3000mv,or a heavier set .338 HVmono below 3000mv?

Woodjack,
I don't doubt your correct but I do doubt that it would make any difference trajectory wise in the field or it would kill the deer any differently with the same hit...Thats just the way it is in the real world..

We tend to put too much emphasis on balistic charts, velocity, bullet wieghts etc. and that gives us the impression that it just has to be better when in fact the difference is zilch..

The 7x57 to the 300 Win mag does about the same thing if you stick it in the same spot..