Which cartridge has better or long neck control

Basically I am looking for a round with the longest neck contact bearing surface

I happen to love the 6mm. From my playing with 6mm wildcats anything larger you are burning a lot more powder for maginal gain.

Thanks

I have just bought a 6mm remington

Will shoot it first and see how the chambers fairs

quote:

Originally posted by ramrod340:
I happen to love the 6mm. From my playing with 6mm wildcats anything larger you are burning a lot more powder for maginal gain.

Ramrod may be right. When I built my 6mm x .270 IMP I never had the ability to measure velocity but with an original heavy Barnes' bullet (circa 1968) it was the Hammer of Thor on mule deer. FYI H4831 was costing us less than $1.00/ # in large quantity. roger

quote:

When I built my 6mm x .270 IMP I never had the ability to measure velocity but with an original heavy Barnes' bullet (circa 1968) it was the Hammer of Thor on mule deer.

Looking at the only data I have handy I can compare my 6mm and my 240PDK (think 240 gibbs in a 280 case).

I had two douglas 6mm 24" barrels. One I chambered 6mmRem and the other I first chambered as 6-06 then my 280PDK. Can't find the 6-06 data but as I remember the gain was pretty much the same as the PDK. I pulled the barrel on the PDK and kept the 6mm. Using the 100gr Part since I have data from both this is what I measured.

6mm with 49.5grs MRP I would around 3290 in my 240PDK using in the range of 58.5grs of 7828, MRP, RL-22 I would get 3340. Remember this is simply one data point one set of barrels.

So I burned 18% more powder for 1.5%velocity gain.

I'm sure a 26"+ or maybe slower powders might have given more gain. I don't like to carry anything longer than a 24" if I can help it.

Compare published data for the 6mm, 6-284, 240Wby(basically a 6-06 with a belt) gains are in the 100+fps range.

Not sure what barnes bullet you were using but hit a mule deer with a 100gr+ bullet moving at 3250-3300 fps and I's sure you will get his attention.

I think everyone should use the cartridge of their choice. If the various large case 6mm make them happy by all means go for it. The large capacity does probably make it easier to find a sweet spot at 6mm max or higher. For my 2 cents give me a 6mm loaded with a heavy load of powder in the MRP RL22 range and I'm happy.

For a time I owned both a .243 superrockchucker and a 6mm Remington....I could see no desernable difference in the field and very little on paper either.

BTW a superrockchucker is a 6mm-06 with a 28 degree shoulder.

Ramrod, At this time in my life the 6mm(.244) would be the way for me to go.
By the way that 6mm.270IMP originally had a 30" barrel. I kept cutting down till it was 26" and fit better into a saddle scabbard. roger

quote:

By the way that 6mm.270IMP originally had a 30" barrel. I kept cutting down till it was 26"

After building a 250PDK on a 24" barrel and seeing almost no gain from my 25-06 handloads when I built a 6.5PDK I went with a 29". Like you I ended up cutting it back to 26". NOt for a scabbard but it sure handled better with the shorter barrel. I did loose 60fps but heck dead is dead.