what is the maximum velocity that can be achieved from the medium dakotas, 7mm .300, and .330. Like maximum handload velocities from longer barrels 26"-28". any information will be much apprecited.

Rock

Hornady, Barnes etc have load data for them (Nosler has "wimpy" data). I have a 300 Dakota and can get about 3250-3300 with 26" barrel.

I haven't tried to get THE max. load in my 26"bbl. 7mm, but to date I have hit just over 3300fps w/ 160grNP. I have shot a few 145gr GS to 3400fps, but haven't pushed the envelope.

I have a 330 Dakota with a 26" barrel and have developed the following handloads (these are chronographed velocities):
225 grain Northfork, velocity = 3050fps
240 grain Northfork, velocity = 2950fps

Tigar

How long does the brass last with those reloads?

I have thought about one for long. Wonder why no of the other rifle makers picks up these medium long rounds, the cartridges are of a healthy construction

/ JOHAN

I have had two Dakota chambered rifles. I had a 330 that would give 2960fps with a 250 Swift from a 24.5" barrel and I presently have 7MM Dakota that will give 3350fps with a 140 XFB from a 25" barrel.

Mark,
Will you post your 330 Dakota 250 grain Swift load? I haven't tried that bullet yet. Thanks.

MHC_TX,

That 330 Dakota load is nothing fancy. 250gr. Swift A-frame, 84gr. H-4831, Mast brass, Fed 215 primer, OAL 3.27". This load is not listed anywhere but it worked for me. This load was worked up in a Lilja barrel on a custom rifle. Please start out by dropping your load at least 5%. I also think the short OAL contributed to the preformance. I actually don't have the rifle anymore. The brass has to be annealed, is expensive and not readily available. It was just a hassle. It is a real screamer though for a 30-06 length action.