30/375 Ruger

[elkaholic]

Does anyone out there have one or have knowledge of a friend that does? If so, what kind of velocity are you getting? How is case life and brass availablity? Is Hornady the only brass manufacturer? Any info would be appreciated........Rich

 

[IdahoCTD]

How about a .300 Dakota IMP. of some kind? You get good brass that way. Something like the .338 SIN necked down.

 

[liltank]

Does anyone out there have one or have knowledge of a friend that does? If so, what kind of velocity are you getting? How is case life and brass availablity? Is Hornady the only brass manufacturer? Any info would be appreciated........Rich

I've brought this very subject up before. LTLR and I discussed it as well as others and narrowed it down to something similar to the RUM. Gunwerks took my idea of the 7mm/375 and made it in to a good LR caliber. It's called the 7LR as I recall. Not sure they took the idea of our conversation, but still! Makes me wonder.

Tank

 

[royinidaho]

elkaholic,

I've never seen a 375 Ruger case thus this question.

How does it compare in volume to the 338 RUM case?

I'm thinking the 270 AM has a bit too large of a case for the caliber. Load densities are pretty low and I find exceptional ESs and SDs to difficult to achieve. In double digits but I much prefer singles.

However, I flat love the velocity I get out of the old girl!!!!

I'm figuring a 338 RUM sized case or some such maybe Shermanized would be a better offering. Note I'm hooked on the 277

 

[elkaholic]

I've brought this very subject up before. LTLR and I discussed it as well as others and narrowed it down to something similar to the RUM. Gunwerks took my idea of the 7mm/375 and made it in to a good LR caliber. It's called the 7LR as I recall. Not sure they took the idea of our conversation, but still! Makes me wonder.

Tank

Hi Tank! I have had 3 RUM's and what appeals to me about the Ruger is approx. 20 grains less powder in a std. length without sacrificing a ton of velocity. I also like the non-belted case which of course the RUM doesn't have either. I feel that barrel life will be far better and since I shoot a lot, that is also factor for me. I am a little concerned about using Hornady brass as they always split at the shoulder when I try to use them to form my Sherman case. The only way to avoid it is to anneal them past the shoulder first. I also thought about the Dakota, but brass is pretty spendy! I guess I shouldn't be TOO worried about that considering how much I spend on every thing else involved....Rich

 

[elkaholic]

elkaholic,

I've never seen a 375 Ruger case thus this question.

How does it compare in volume to the 338 RUM case?

I'm thinking the 270 AM has a bit too large of a case for the caliber. Load densities are pretty low and I find exceptional ESs and SDs to difficult to achieve. In double digits but I much prefer singles.

However, I flat love the velocity I get out of the old girl!!!!

I'm figuring a 338 RUM sized case or some such maybe Shermanized would be a better offering. Note I'm hooked on the 277

Hi Roy....good to hear from you! The .338 RUM has considerably more case capacity than the Ruger which is around 93 grains. I think the RUM is 110+? I may just use my case which I can get around 3050' with my 190's out of a 28' barrel. Since I am selling a bunch of stuff to try to build a top notch rifle starting with a BAT action, I thought I would consider every option first. My action will be ready by the first of the year and a 10 twist Krieger barrel should arrive by the end of Feb. The Krieger will be a 28" as well with a Sendero contour. I am pretty sure I could get close to 3300' with a 28" barrel and my 190's without having an excessive barrel burner like the RUM. Besides, I gettin' too old to be kicked that hard......Rich

 

[IdahoCTD]

Are you just looking for a shorter case or a non-belted case? I shoot a .30-8mm and it shoots 210's 3100fps out of a 27 1/2" barrel. It shot a .96" group at 550yds a few weeks ago, a .7" group at 250yds in poor light conditions, and has shot a ton of .3" groups at 100yds. It's a Sendero contour Bartlein barrel. It will shoot 190's 3250-3300 but it loves the 210gr bullets. It's about as easy to work with for a wildcat as it gets. You get crappy Remington brass to work with but I've formed it out of .375 H & H Winchester brass too. I've shot most of my cases 3-4 times.

 

[bigngreen]

If I were looking for a higher performance 30 cal the 300 Norma Mag would be something to research.

 

[royinidaho]

It won't be too long, maybe by the end of 2012 that the AM will be needin' a new barrel.

Rather than set it back I'll simply replace it.

I'll most probably go with the 270 AM chamber in a 30" length but with a Pac Nor Polygonal bore.

Should be much easier on projectiles plus even more velocity..........wooo hoooo

 

[HARPERC]

My partners son has A Ruger chambered in .338 Winchester, and wants a bit more. I looked at the 375 Ruger case with an eye towards a 338/375 rechamber, and as near as I can tell, you get a case with about 100 grains of H2O capacity. The 338 RUM case as has been noted will run about 110 grains, and the 300 Weatherby is listed at one source as 99 grains. Hornady says the 375 Ruger has about 6% more case capacity than the standard H&H.
Case capacities differ source to source, and in reality, but basically what you end up with is beltless 300 Weatherby.

 

[elkaholic]

Are you just looking for a shorter case or a non-belted case? I shoot a .30-8mm and it shoots 210's 3100fps out of a 27 1/2" barrel. It shot a .96" group at 550yds a few weeks ago, a .7" group at 250yds in poor light conditions, and has shot a ton of .3" groups at 100yds. It's a Sendero contour Bartlein barrel. It will shoot 190's 3250-3300 but it loves the 210gr bullets. It's about as easy to work with for a wildcat as it gets. You get crappy Remington brass to work with but I've formed it out of .375 H & H Winchester brass too. I've shot most of my cases 3-4 times.

Actually, both a shorter and a non-belted which is why the Ruger and Dakota appeal to me. I have a Bartlein on my 300 Sherman. Is yours a 5r?......Rich

 

[IdahoCTD]

Yes it's a 5R.

After doing a ton of wildcat cartridges over the years I try to make it easier and cheaper now. So cases that don't have to be blown out/fireformed are much easier.

 

[woods]

I've got one in my future just haven't pulled the trigger yet. I have a Beretta Mato 300 win mag which shoots the 200 gr Accubond at about 2900 fps and I would like to bump that up to 3000 fps. Plus just the fun of doing a wildcat. I have a 375 Ruger and brass.

Here is what I have discovered:

4D has a reamer for rent

4-D Products Rentals

The reamer should clean up a 300 win mag chamber and the barrel may have to be set back a thread or two.

The hard part was figuring out how to get the brass neck sized down. I called Hornady IIRC (might have been Redding) and there was one of their techs that shoots one and they recommended stepping down the brass with the following dies in sequence:

375 Ruger FL without expander
338 RCM FL die (neck sizer wouldn't work because of forcing cone internal slope)
300 RCM Neck Sizer

I got the dies and they do work, here are some pics with 375 Ruger and 300 win mag cases

The 30/375R neck resized case grew about .010" in length but no significant increase in neck thickness.

Of course, AFTER you have fire formed a case or two you can send them off to get whomever to produce dies; Lee Collet, Redding Body Die, et al

IMO it would be a gun you could shoot without a muzzle brake. It would essentially be a 300 win mag MAGNUM without a belt where you could have low headspace and not worry about case head separations. In my case where I have a 300 win mag and a Lothar Walther barrel existing on it, the price would be around $300 without the cost of a barrel or refinishing the gun (hopefully).

Just haven't got a

 

[elkaholic]

Woods.....thank you, this is good info. The neck stretching could be a good thing especially if I have my own reamer made. I like a little longer neck or you could always leave a false shoulder and increase the body a little. Maybe sharpen the shoulder too Here I go gettin' carried away again........Rich