What does it take to make this round?Anyone had experience with it on long range windy conditions and any loading data would be appreciated

hiSteve,it is my understanding that the 6mm-06 is simply the 30-06 case necked down to 24cal.Iused to shoot groundhogs years ago with an old fellow who used it a lot.He called it a 240 varminter and also 240 Gebby.I made my longest kill ever with it.(525yds),I don't remember what his load or bullet wt. was,it has been so long ago(1960's)
cheers,Wyatt

Steve,

It is formed by necking down .25-06 (or .280 Rem. or .30-06) brass in the 6mm-'06sizing die.

A big 6mm like this will buck wind better than any .224 centerfire.

Loading data is scarce, but it's ballistically identical to the .240 Wby. and 6mm-.284 rounds.

George

I'd reiterate what George said. The following I've copied in from my post under "H-1000" in the reloading forum. All of the information pertaining to .243 bullets was obtained from my 243/06. If I find the time I'll dig up additional loading data and post it here.

Good luck,

Reed

*****

I've been tinkering with H1000 and R25 in my 22/6mm's and a 243/06. I use it primarily for the heavier bullets, 80g and 100+g respectively. I typically use H4831SC for the intermediate bullet weights.

As for H1000 and R25, the standard deviations and relative standard deviations of several loads shot over an Oehler chronograph are very close. Here is some velocity data:

H1000:

69g .224 bullet, 48g H1000, 3621�17
80g .224 bullet, 50g H1000, 3424�15
70g .243 bullet, 58g H1000, 3584�21
100g .243 bullet, 55g H1000, 3312�13
105g .243 bullet, 55g H1000, 3290�10
107g .243 bullet, 55g H1000, 3278�8, & 3317�25

R25:

80g .224 bullet, 47.3g R25, 3357�22
80g .224 bullet, 48g R25, 3448�13
80g .224 bullet, 50g R25, 3568�23
85g .243 bullet, 58g R25, 3717�14
100g .243 bullet, 55g R25, 3501�5
107g .243 bullet, 55g R25, 3478�15
107g .243 bullet, 55g R25, 3467�8
107g .243 bullet, 55g R25, 3463�19

Statistically I think I like R25 just a bit better, especially with the .243 bullets, even though this isn't a very large data pool from which to judge.

R25 is a bit more expensive if that's a concern. If it is I might mention that Natchez has H1000 8# kegs on sale for $99.

My next step in comparing these two is to do a load test over a 2 grain range with three rounds loaded in 0.2g increments. I'm looking for both a velocity and accuracy sweet spot. Quite frankly, whichever gives me the largest sweet spot is the one I will standardize upon.

Good luck and I hope that helps.

Reed

I just love the round,give me a 6/06 and my 7 Mashburn Super and I am set to hunt the world (or at least what I can afford-grins).

I am on my 2nd tube on mine-I also converted about 4 other fellas to using one.

We use Schneider 4 weight tubes, some have 10 twist some have 12 twist. (mine have been 10 twist) with 25" tubes.

The 3 bullets I have used are basically this

All are Noz BT's

55/IMR 4350=4400 fps

70/IMR 4350=4000 fps

95/R22 or R25=3500

I use 25/06 R-P brass in the nickle form to start with. I use the nickle to help keep em apart from other 25/06's with a quick glance if that makes sense. In others words I never even consider putting a brass case in my gun and my fella 6/06 shooters do the same. Just a bit more help with the safety factor.

This is a great round-super killer of long range chucks and yotes!!

It also electrocutes deer and lopes. Will work just fine on elk as well as long as you keep your head.

"GET TO THE HILL"

Dog

What will the 6mm-06 do that a 25-06 wont? Seems to me that something that much overbore would be better served with the larger bullets available in the 25-06. Not trying to be a pain just looking for opinions.

I shoot a 240 Gibbs and 95 grn nosler BT. H-870 has been my powder of choice since they shoot the most tiny groups, consistantly, that I've ever shot. It's my long range coyote load, and does 3450 fps but expect it wont do anything a good 25-06 wont do. just wanted something different.