Just curious...does anyone know the maximum pressure for the 405 Winchester? I have heard that it is ok to load it to the same pressures as the 270 Winchester! I did not think that lever gun cartridges were that strong though. thanx judy

Quickload lists the max for the 405 Win as 35,534 PSI, and the 270 Win as 62,366 PSI. Obviously the 405 can be loaded to higher pressures in a strong action like the Ruger #1, but those loads could be dangerous in a weaker action (there are a few doubles and other older rifles still floating around that would definitely not do well if fed higher pressure 405's by mistake!!!).

Jim

[ 09-12-2003, 17:02: Message edited by: mbogo375 ]

I should think this answer would be more revelant if the rifle the cartridge is to be used in was mentioned.
Jim

The firearms I was thinking of were the new manufacture M1895 Winchester and the Ruger No1. Both have been chambered in 270 Winchester, I think. I appreciate the input guys, thanx judy

I just got a stainless #1 in .405 and have been able to push 300 grain bullets over 2,500 fps.....though it's just a guess, I'd suspect that the pressure is around 50,000 - 55,000 cup.

Lee Martin
www.singleactions.com

Lee Martin, would you mind sharing you loads with everyone? judy

Judy....I'd be glad to. Once I get home, I'll look them up and post the data.

Lee Martin
www.singleactions.com

Rear locking lugs(like'95s and '94s) make the total rearward thrust of the case head (as in Contenders) even more important than the max overall psi. The larger the head (more square area of thrust) the less total psi allowed. Somewhat the old 45-70 issue, the action type dictates the loading limits.

Blackhawk44, is the case head diameter different between the 405 Winchester and the 270 Winchester? The base diameter of the 270 is a little bigger than the 405, but the rim diameter of the 405 is much bigger. judy

dang it...

Stop feeding the troll, please...


jeffe

Fe Fi Fo FUM. I smell troll or troll wife-um!-Rob

jeffeosso & Robgunbuilder-why are you calling me a troll? Is it simply because you cannot/will not answer my question, or do you just dislike women in general? I am simply trying to understand why one cartridge can be loaded to one pressure while another must be loaded much lower. Even though the two cartridges are basically the same size. Is that so difficult to comprehend? judy

I will help.Just lighten up on politics a little.
You can get a little more energy from a 405
than a 270.That is the only function of the
powder charge,not pressure.And in the same lever action firearm.
But because a 405 is a straight case(IE, more
efficient,because of better expansion ratio,
that the bigger bore gives),you have to use alot faster burning powder to get the same pressure
as a 270 is loaded up to.Granted if you did that you would have even more muzzle energy, but
the pressure curve and action of that much faster powder wou dismantle lever firearms.It spikes up to pressure too quick.You would have to have a real thick barrel and super strong bolt action.Ed.

Blackhawk44 & hubel458, thanks to both of you. Between your answers I think I understand the 'whys and wherefores' now. judy

Correction to my last post.....top velocities with a 300 grain bullet were only around 2,300 - 2,320 (not 2,500...I finally got a chance to recheck my chrono results). I'd estimate the pressures to still be between 50,000 - 55,000 however.

Lee Martin
www.singleactions.com

Lee - what loads are you using. Had a 'gentleman' tell me he was shooting 60gr of IMR3031 in his 405 Win with 300gr Hornady bullets. His rifle, by the way, was a new M1895 Winchester. Has anyone actually seen one of the new M1895 Winchesters? judy

Judy,
I can't remember the trolology on this, but doesn't either your "husband" or "toade" have a new win in 405?

hmmm, too many lies to keep straight?

jeffe

I've got one of the "new" Winchester 1895's. Not in the 405, but mine is 2 years old, nontheless. The rifle is made for Winchester by Miroku. It is very well made, and yes a couple of years ago, chambered for the 270 Winchester. That's probably where your advice of the 405 being loaded to 270 Win pressures came from. The Winchester rifle can handle the 270 and 30-06 class pressures easily enough, and several wildcats, including the Hawk line, are being chambered in the rifles.

For what it is, the rifle is very nice and reliable. Accuracy is good as I can shoot iron sights. The rifle is not easily scoped, though a nice peep sight serves it well. I would definitely recommend some type of peep sight or changing out the buckhorn and front sight with something different, but that is a personal judgement. A lot of folks have complained about the recoil being a problem because of the stock design, so you may want to add a high quality recoil pad. It doesn't seem to bother me very much, but it does to some.

One thing that does bother me till no end is the tang safety. I hate it. Any rifle with an exposed hammer, ought not have a safety on it, period. At least that is my take on it.

[ 09-18-2003, 04:10: Message edited by: Yukon Jack ]

old old loads for the .405 in Phil Sharpe's Handloading went up to 48,000 pounds, this was by the calculations they were using in 1935 or so, I have no idea how that relates to current pressure measurements. Velocity with the 300 grain was up to about 2300, faster than the factory loads. This was all in original Winchster 1895 rifles. The limit with the 95 was back push on the stretchy action, so 48,000 with the .405 inside case diameter, same as a .30-40, would be less than 48,000 with a .30'06, which was a fatter case inside diameter. I imagine a steady diet of such loads would gradually loosen up an old 95, and I doubt the new ones from Japan are much more rigid. I have a High Wall .30-40, the bore all worn out, and will get around to having it rebored to .405. It should have no trouble with anything the Ruger NO. 1 will take.