Who's shootin .375 Ruger?
- Thread starter xxclaro
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I get 2755 fps for a 260 NAB in a 20"barrel.
I've never used 760 powder but I have a feeling it's a misprint.
Either a misprint or its a 378 WBY...
260 GR. NOS AB Winchester 760 .375" 3.230"
74.7gr 2659 51,000 PSI
79.5gr 2808 60,400 PSI
Even the 235 TSX maxes out at 2950...
Over 3100 FPS 375 Ruger
Hi Doug - a few of us are questioning the over 3100 fps with your sons 375 Ruger - not sayin your wrong - maybe just mistaken ? If he is he is ! All OK ! 
s Jim
Hi Doug - a few of us are questioning the over 3100 fps with your sons 375 Ruger - not sayin your wrong - maybe just mistaken ?
If he is he is ! All OK ! s Jim 3100 fps??? You sure about that? That's pretty darn fast.
No, he's sure. The loads that his son runs are to the limit(I was asking his son the other day what velocities he was getting out of his 375 ruger). Brass life is fairly short from what I gather...
The loads both of those guys run are worked up extremely well and no one should duplicate them blindly. If you worked up to that level on your own then fine, but the loadings are very rifle specific.
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BigUglyMan
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No, he's sure. The loads that his son runs are to the limit(I was asking his son the other day what velocities he was getting out of his 375 ruger). Brass life is fairly short from what I gather...
The loads both of those guys run are worked up extremely well and no one should duplicate them blindly. If you worked up to that level on your own then fine, but the loadings are very rifle specific.
Which likely means "Unsafe". "Pressure signs" often fail to show up until you are well past safe pressures.
I'd put them at 'your rifle will not last forever' kind of loads and 'not for the faint of heart'. Doug has a huge reservoir of knowledge when it comes to firearms and has developed many of his own cartridges and therefore has a solid understanding of what you can and can't do with a rifle. His son works on the same principle as well so if anyone can do it safely those two would be the likely candidates for pushing a rifle to it's limits, which is exactly what has been done here.
Anyway I'm done on the subject. Any further comments can come from Doug(c-fbmi) as I'm just a third party on this.
No, he's sure. The loads that his son runs are to the limit(I was asking his son the other day what velocities he was getting out of his 375 ruger). Brass life is fairly short from what I gather...
The loads both of those guys run are worked up extremely well and no one should duplicate them blindly. If you worked up to that level on your own then fine, but the loadings are very rifle specific.
What sort of pressure testing equipment was used, and what is the load ? Very interesting.
Over 3100 FPS 375 Ruger 260 gr load
CF-BMI - we need some input & clarification of this over 3100 fps loading of a 260 gr bullet in a 375 ruger - whats the load and pressure ? RJ
CF-BMI - we need some input & clarification of this over 3100 fps loading of a 260 gr bullet in a 375 ruger - whats the load and pressure ?
RJSomething tells me that my 66 yr. old shoulder behind the recoil pad would NOT like that load, as for brass life its short enough to please me now without boosting the pressure....
CF-BMI - we need some input & clarification of this over 3100 fps loading of a 260 gr bullet in a 375 ruger - whats the load and pressure ?
I will not post loads on public forums, but this load has been chrono'd through 3 different chrono's 3 different times.
I question how pressures could be unsafe long before signs show up on the brass. The brass IS the weakest link in the whole program, if there are no pressure signs on the brass, then pressures are safe in that firearm.
Too many people think that if you exceed the book max your rifle will automatically explode and take you with it.
All loads have been worked up responsibly, one grain at a time or 1/2 gn in smaller cases, within the limits of the brass case, as I said he hunted Africa with that rifle and load in 35 + heat with no ejector marks or sticky cases. Where's the unsafe pressure?
Modern rifles with modern steels will continuously take 100,000 CUP or PSI which ever you like and not fail, not catasrophically or even minorly, the brass IS the limiting factor to safe loading practices and if we get 5 or 6 loads from a brass then in my opinion the load is safe and practical. I also never assume that because a load is safe in one rifle that I can use those loads in a different rifle of the same caliber, all my loads are labeled as to which rifle they are for when I have multiple rifles in the same caliber. I DO NOT lend my loads to anyone else ever, even if we happen to be hunting with the same caliber.
Having never loaded for another ruger 375 I had nothing to compare this to but I guess it's quick by all standards, maybe he's got an exceptionally smooth bore or slightly oversize, I don't know but the load and velocity have been confirmed 3 times. It also shoots right around 1" @ 100 mtrs
I get 2925 from 270 TSX and RL15 in my H+H through 2 different chrono's several different times and I also hunted Zambia with this load and rifle in 55+ degree heat with no ejector marks or sticky cases. What determines unsafe in your minds? Just because a book says so? After 40 years of reloading without ever having destroyed or even damaged a rifle I will go with what I've learned and established as my safe practices, not asking anyone else to.
As I stated in another thread I have legitimately shot out 3 rifles and probably 2 others and at no time did these actions need work or repair from being "overloaded" while shooting handloads worked up in my usual way.
I'll say it one more time THE BRASS CASE IS THE WEAKEST LINK IN METALLIC RIFLE CARTRIDGE RELOADING. If you read and obey your brass you will not have problems. This is common sense.
This discertation has one condition though, it only applies to modern, good quality bolt action rifles, period.
And as always, these loads have proven to be safe in these rifles only, you must use your own common sense when loading for your own rifles.
For information sake I have 4 chronographs, 3 Chronys including their most expensive one (can't remember the model) and an Oehler 35P.
I often tandem up 2 when developing loads, to reduce errors and false readings.
Gentlemen most of you would not believe what I have done, in the name of studing internal ballistics for higher velocities. I have played with extended flash tubes in a 7mm-300 Wby, 1/2", 1", 1 1/2". I have done multiple orifice flash tube extensions, I have plugged the single flash hole and drilled 3 and 4 smaller flash holes to attempt to improve ignition in slow ball powder loads, I have tried multiple powder loads (in the same load) in a 30-404 30 deg Imp. This is just to name a few, so when I tell you my worked up loads are safe in a given rifle, I say that with an extensive understanding of internal ballistics, modern rifle capabilities and brass case limitations. When working beyond the ragged edge in uncharted waters I sand bag the action and pull trigger with string, I always work safe and have all my fingers and both eyes and intend to keep it that way. My experimentation was to extend my personal knowledge and was not within the realms of normal handloading practices, I accepted the fact I may destroy an action or bulge a barrel, but never did. Some of you will think this is insane but the acquisition of knowledge often lies outside the normal bounds.
Apologies to the OP for the extended hijack.
I often tandem up 2 when developing loads, to reduce errors and false readings.
Gentlemen most of you would not believe what I have done, in the name of studing internal ballistics for higher velocities. I have played with extended flash tubes in a 7mm-300 Wby, 1/2", 1", 1 1/2". I have done multiple orifice flash tube extensions, I have plugged the single flash hole and drilled 3 and 4 smaller flash holes to attempt to improve ignition in slow ball powder loads, I have tried multiple powder loads (in the same load) in a 30-404 30 deg Imp. This is just to name a few, so when I tell you my worked up loads are safe in a given rifle, I say that with an extensive understanding of internal ballistics, modern rifle capabilities and brass case limitations. When working beyond the ragged edge in uncharted waters I sand bag the action and pull trigger with string, I always work safe and have all my fingers and both eyes and intend to keep it that way. My experimentation was to extend my personal knowledge and was not within the realms of normal handloading practices, I accepted the fact I may destroy an action or bulge a barrel, but never did. Some of you will think this is insane but the acquisition of knowledge often lies outside the normal bounds.
Apologies to the OP for the extended hijack.
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4 chronographs but no actual pressure testing equipment and a willingness to go to 100 000 PSI but not be able to measure where you are at....
I'm glad I won't be volunteering for your shooting expedition!
yes, we all know that the brass is the weak link. And we know that modern rifles can digest very high pressures, at least for some time. Most modern cartridges top out maximum safe pressure at about 65000-70000 PSI according to SAAMI. 100 000 PSI is probably more than required for just about any type of hunting.
I don't understand the point of loading to such extremes, I'd rather just go to a bigger cartridge. But whatever floats your boat.
4 chronographs but no actual pressure testing equipment and a willingness to go to 100 000 PSI but not be able to measure where you are at....
I'm glad I won't be volunteering for your shooting expedition!
yes, we all know that the brass is the weak link. And we know that modern rifles can digest very high pressures, at least for some time. Most modern cartridges top out maximum safe pressure at about 65000-70000 PSI according to SAAMI. 100 000 PSI is probably more than required for just about any type of hunting.
I don't understand the point of loading to such extremes, I'd rather just go to a bigger cartridge. But whatever floats your boat.
In a nut shell you missed my point, not loading to 100,000 psi, said modern rifles are capable of withstanding these press continuously. The brass case is limited to approx 70,000 max. I said I load within the safe constraints of the brass case, who cares what the pressure is if it's within the safe limits of the brass, which is significantly lower than the safe limits of the rifle.
These are not loaded to extremes, they are safe and practical loads that get 5-6 loadings per case, how is that extreme. What criteria do you use to call this extreme?
How is it you can ignore the statement that these loads were worked up responsibly in 1 gn increments within the safe limits of the brass and get 5 or 6 loads per case? Then arbitrarily call them extreme.
Well, you don't know if they are extreme or not, since you haven't pressure tested them. If you are saying that 70 000 PSI is max for the brass case, and a .375 RUM shooing 260gr NAB at 2950 fps has a pressure of about 63000 PSI, we can only imagine what pressure a smaller case and 200FPS more velocity generates, and how close to the edge you may be.
It would be interesting to know the actual pressure, not just guess at it being safe because you haven't encountered pressure signs yet. I know it's happened to me that I saw no signs yet the velocity was way off the charts and so it could be assumed that pressure was also off the charts.
But what I was referring to with extreme was the performance in a hunting situation, and in relation to regular 375 Ruger performance. If I wanted .378 Weathebry performance, I'd just get a .378 Weatherby. But that's me.
It doesn't matter to me what you load in your rifles, but I find the topic interesting, which is why I wanted to know your load and if you had actually pressure tested it.
Actually I do know they are not extreme, I don't need to pressure test to be safe as the BRASS CASE tells me I'm not extreme. The velocity and pressure quoted for the 375 RUM is with 1 rifle and 1 load and it produced that velocity in that rifle. It is the industry's considered opinion and my observation that brass cases fail at somewhere between 72-78,000 cup depending on brand so any load that doesn't cause case failure for 5-6 loadings is safe and obviously under the 70,000 or so cup level.
My point is that what the pressure actually is, is irrelavent as long as cases contain it for 5-6 loadings, it is safe for that rifle and those cases.
I also never set velocity expectations when loading, I work up loads based on pressure signs on the brass and to a much lesser extant the primer (but they will lie) and the velocity is what it is when max load is reached. I have found it can vary as much as 300 fps in the same caliber with different rifles and brass using same bullet and powder. Guess the kid just got a fast barrel !!
To directly answer your question Gatehouse, no I've not pressure tested any loads, remember I live in the frozen middle of nowhere without access to such goodies.
Just imagine what I could get from the 378 Wby...
My point is that what the pressure actually is, is irrelavent as long as cases contain it for 5-6 loadings, it is safe for that rifle and those cases.
I also never set velocity expectations when loading, I work up loads based on pressure signs on the brass and to a much lesser extant the primer (but they will lie) and the velocity is what it is when max load is reached. I have found it can vary as much as 300 fps in the same caliber with different rifles and brass using same bullet and powder. Guess the kid just got a fast barrel !!
To directly answer your question Gatehouse, no I've not pressure tested any loads, remember I live in the frozen middle of nowhere without access to such goodies.
Just imagine what I could get from the 378 Wby...
Both cases have similar capacity (within about 2gr water) so maybe. But then again, with Weatherby claims, you never really know!
