I have spoken with Mike Brady sevral times about making bullets for the 500 Jeffery as well as the 505 Gibbs. If there is enough intrest in it he will produce a run. Is anyone interested?

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I have talked to Mike about it too.

Whatever he sees fit to make has got to be good, and I'll be in for some, both .510 and .505 caliber bullets, whatever I can get, whatever he will make.

My own peculiar preference would be for 570 grainers in both calibers.

If they are lighter than that, O.K., I just don't want anything heavier than 570 grains in either bullet.

Take a vote? Relay the poll?

What I would buy would be good 600 grain .510" bullets.

For neither the Jeffery nor the Gibbs. But I would buy them.

Heavier, with good bullet construction and enough velocity, is always better.

From my discussion with him, the main issue is diameter not bullet weight. It takes a special run of round stock to make the big 50's. I would be happy to buy 300 of each to keep on hand. His boxes are 50ct. each. I am not sure how many bullets he would have to make to do justice on that run. I think a poll would be in order/what say all of you?

I would also try 570 grain bullets in .505. Thanks.

Good Nick! Smart! MR needs to get with the program, as a 570 grainer is over 0.3 SD-FOM, is more than enough for deepest penetration and better stability with the slower twists and fast twists, and will smack harder at slightly higher velocity.

The .510/570 grain CPS would be a good hunting bullet for many rifles, so most likely to get more buyers, shooters of:
500 NE
500 Jeffery
500 A2
50 BMG

But .509 caliber would be safer in double rifles of 500 NE persuasion, antique 500 Jeffery rifles, and they work great in all the others too.

After that it would be easier to tweak the program for .505/570gr CPS.

With the CZ .505 Gibbs rifles and Jamison .505 Gibbs brass coming soon, there will be increased demand for .505 bullets.

I think 570 grainers in both .505 caliber and .509 caliber would be the best. Fingers crossed.

Or would the .505 Gibbs be better in .504" for any reason? Easier on the bore of an antique .505 Gibbs, of which there were only 35 ever made???

I'm wondering if the bullet design is as conducive to being drawn-down (from .510" to .506") as are the Barnes "X", which I've been using for some years now. I'm quite light on experience in drawing down bullets of various design / metalurgy.

Yes, to my eye, @ 570 grains, .505 projectiles are just beginning to look appropriately "long".
All I have left are a box or two of 600 grain Barnes Super Solids and 200 or so "XLC" coated 570's. I'd feel better with a quality alternative handy. I'm ready to order!

Hi All,

Be more careful please!
Reading CPS bullet, I believed the sky was falling on my head. When speaking of CPS, we Europeans are thinking of BLASER CPS BULLET, a shabby copy of the Nosler. I tried it 3 times (in the evening) and every time I got a rotten game the day after.
Northfork desserves a better name for such a nice bullet.

I would buy some .510" 570's.

Just currious, why the 570gr. when the monometal bullet is already long and with the cutting shoulder should not only cut but also have deep penetration. I have had very good service with my 505 Gibbs by Davenport. Shouldn't a 540 gr. bullet be sufficient???

I just talked to Mike Brady about this issue. He can make bullets for 500 N.E.(570gr.), 500 Jeffery (535gr, 570gr.), and 505 Gibb (525gr, 570gr.). A minimum confirmed order of 100 boxes of 50 rounds would set the deal. This will be for cup point solids and possibly flat point solids design. The soft point would require additional tooling costs which would significantly delay any effort. In these calibers I don't see a need for a soft anyway and since Woodleigh makes good softs, there is an alternative. Is there enough intrest in the big 50's to get this done?????? Please either call Mike or PM me so we can get started.

Traditional .505 Gibbs: 525 grains, SD = .294

Traditional .500 Jeffery: 535 grains, SD = .294

Traditional .500 NE: 570 grains, SD = .313 (also used in the .500 Jeffery)

Using the FOM SD values and realizing that the monometals work well with less SD:

I think the suggested 540 grain .505 would be great:
SD = .302

For the .510 of 550 grains, that would work too:
SD = .302

And, in hopes of regulating better in double rifles, a 570 grain .509 would be a good idea,
Though if a single weight must be chosen for that bore, I could go with a 550 grain .510.

Edited after seeing lb404's post above.
Sounds like they got it covered:

Just a matter of 100 boxes of each bullet made?
.505: 525 and 570
.510: 535 and 570

Four different bullets at 100 boxes each or would 25 boxes of each of the four, totaling 100, do it?

And only for the Cup Point?

If the Flat Point is added that is 8 different bullets.

Please specify quantity required for each bullet.

Too complicated to expect to get 100 boxes of each bullet spoken for from this board.

The simplest plan in hopes of quickly getting this done would be:
Cup Points only:

.505/540 grain
.509/570 grain

100 boxes of each of those, or would 50 boxes of each do the deal?

The biggest expense is buying spocial over sized round stock. He told me that he can make the .510, .509, and the .505 out of the same stock. He told me that a confirmed order for a combined total of 100 boxes would get things rolling. He will run two weights in each caliber except the .509 for the 500 N.E. as he thought that staying with the one weight would allow for better regulation. I plan to buy 10 boxes of each caliber .510 and .505 and use the cup point solid for most. I probably would like some flat point solids in each caliber. Keeping it as simple as possible would gurantee a good product and in a reasonably timely fashion. I am excited about the deal. Remember he is producing 50 round boxes of bullets not 25 round boxes commonly offered in these calibers. A pretty good value for money. I think the price would be similar to the ones produced in 470.