someone said they had seen a 375 fruger getting 2800 fps with 300 grain bullets with rl-17.If I recall it was like 81 grains.
anyone on AR tried out this combo if so I would like info going for a big brownie and that sounds really good. I just really started playing with the 375 ruger from AHR. I have a longer barrel than the 20 and 22 inch i think mine is 24
thanks in advance

That's only about 150 fps too high ...

I was thinking that also.
I just talked to a guy that ussed rl-17 and 300 grain TSX and got great groups no pressure but velocity was 2690 fps load 81.4 grains It also was very accurate.
It seemed high to me also maybe with 270 but 300 grainers i can't believe

I must be a sissy....

I load my Alaskan 300grn Swift to 2450fps.

It was good enough to go shoulder thru shoulder lodging under the hide @ 100yds Cape Buff Bull...

But thats just me.. Your results may vary..

Gerry:

On AR there are a lot of guys with awfully optimistic chronographs

quote:

Originally posted by Dave Bush:
Gerry:

On AR there are a lot of guys with awfully optimistic chronographs

Quite a few with no chronies have very high opinion of their guns also. I have offered my chrony to some at the range and they decline rather than burst their bubble. The truth hurts

quote:

someone said

Is not the title of a reloading manual--

SSR

quote:

Originally posted by Dave Bush:
Gerry:

On AR there are a lot of guys with awfully optimistic chronographs

Yes more so when they are selling their guns.

I have got 2600-2650 fps with 300 grs Nosler P and Accubonds and Hornady 300 grs BTSP`s using Norma 203B and 204. 203B gives pressure sign around 2600 fps so I discarded that powder. Then tried Norma URP. H... a difference - I used 81 grs behind the 300 grs Accubonds and got
around 2720 fps, tried all the way up to 84 grs which gave around 2760 fps. No high pressure signs or case head expansion and good accuracy. Now after 4 reloadings still no loose primer pockets... I used 80 grs URP behind 300 Nosler Partitions for my lion etc in Novembers Zim heat, no problems at all. Tht load gives me 2690 fps. And oh - no optimistic chronografs here - I have two (and have compared with a friends as well) and they give same results +/- 5 fps. ÚRP just give good velocity in my rifle (the short 20" barrel Alaskan) compared to other powders I have tried..

Well, if some people are getting very close or into the 2700's with their Alaskan's, especially, knocking on 2800's door isn't that far fetched of an idea with 4" more barrel.

i got the 2700 fps with the 300 tsx with rl-17 81.1 grains. groups were so so abot 1 1/4 inches so I anm going back and try changeing seating depth and try and get it a little tighter. no pressure signs and I actually think i could go higher but that is plenty fast. I usually shoot a 375 H & H and a 375 RUM and I am surprised to say the least with the 375 ruger. My gun has a 24 inch barrel so that probably helps with speed but still pretty darn good.

I got to 2600 with h4350 in one of my alaskans using 300 grain hornadys. Dont think I could have went much past that.

the case has the same capacity as a 375 weatherby -- but not throated the same... 2700+ should be easy .. if i had to have 2800, i'd go 375 rum

i tried 83 grains of rl-17 with a 270 north fork and was shocked to get avg of 2830 on 4 shots however accuracy was not there. I did not have pressure signs at all but if it does not shoot good who cares. I did shoot 74 grains of rl -15 with the 270 north forks and they were above 2700 but not much but they shot crazy accurate. I think you measure from the widest two points and subtract .375 and if that is the proper way to measure they shot .385 group for four shots, i am not sure thats how you measure groups though.I would think the 270 north fork going over 2700 fps would be good medicine for a big alaskan brown bear because I think thats what I will use.
thanks for all the info as I am still learning the reloading business and while fun can be frustrating.

quote:

Originally posted by jeffeosso:
the case has the same capacity as a 375 weatherby -- but not throated the same... 2700+ should be easy .. if i had to have 2800, i'd go 375 rum

Wisdom here. Why try to push a cartridge beyond what it is meant to do?

With 81.5gr RL-17 I was getting 2725 FPS from a 20" barrel RUger Alaskan. No pressure signs whatsoever, but the recoil was a bit more noticeable.



That's 4 shots at 100. The third shot was a called flyer, I pulled the shot and knew it, so shot a 4th time and it landed with the other 2.

quote:

Originally posted by Cross L:

quote:

someone said

Is not the title of a reloading manual--

SSR

Sure it is... Other attributes are 'wishful thinking' and

quote:

Originally posted by Dave Bush:
Gerry:

On ARthe internet there are a lot of guys with awfully optimistic chronographs

Fixed it.

quote:

Originally posted by jeffeosso:
the case has the same capacity as a 375 weatherby -- but not throated the same... 2700+ should be easy .. if i had to have 2800, i'd go 375 rum

+1 - also my experience...

I am not sure why someone would want to say a round is faster than it is. Makes no sense. Having said that the 375 ruger is a hot round I have all the 375 's and it is more gun than I thought. Trying to decide on 270 Or 300 grain for a brown bear in may. I know both would do the job and I am not worried about a north fork failing just can't make up my mind. These are fun decisions to make.

I like using Varget to get 300gr TSX's @ 2520 fps out of my Alaskan. Not the fastest, but she'll easily do sub 1/2" @ 100yds, and is very nice out to 400yds.

The extra blast, powder, and wear & tear on you, the brass, and the rifle isn't worth an additional 200+ fps - which isn't going to make any difference on game.

When you see the damage a 300gr TSX bullet at 2500fps does on game, you'll stop chasing velocity.

I like your thinking, mwm464. 200 fps is enough to make a difference on trajectory, but not within normal ranges for a 375.

Varget is a wonderful powder, probably the one I would choose if I could only have one.

Eventually, I always end up wanting the trajectory available for the 10% of the time when it makes a practical difference. Those 200 fps give up 2" at 300 yards and 5 inches at 400 yards with the 250grain. I want those in my pocket. For a slower trajectory one can always get a 9.3x62. With a 300 grain bullet at 2530fps one gives up 5" at 300yd (-9.6" using +3" max arc) and 12" at 400yards (-29.5" using +3" max arc). That is just too much for me to volunteer to the animal. Unless I'm bowhunting.

So I get used to the load of choice and treat it as normal. It is. An extra 200 fps doesn't hurt the killing power either, especially with monolithic bullets. The 250 grain TTSX bullet can be sent downrange at 2850fps-2900fps. I would find the accuracy nodes and choose the highest velocity. It will feel very comfortable, especially in the Ruger-Hogue stock and after taking the first animal with a max load. You won't even know the gun went off as long as your scope has 4" eye-relief.

quote:

Originally posted by 416Tanzan:
Eventually, I always end up wanting the trajectory available for the 10% of the time when it makes a practical difference. Those 200 fps give up 2" at 300 yards and 5 inches at 400 yards with the 250grain. I want those in my pocket. For a slower trajectory one can always get a 9.3x62. With a 300 grain bullet at 2530fps one gives up 5" at 300yd (-9.6" using +3" max arc) and 12" at 400yards (-29.5" using +3" max arc). That is just too much for me to volunteer to the animal. Unless I'm bowhunting.
...

I am genuinely interested. If you are using 250gr bullets, would it not make more sense to drop to a 250gr .338 or .350 of some kind?

quote:

Originally posted by TwoZero:

quote:

Originally posted by 416Tanzan:
Eventually, I always end up wanting the trajectory available for the 10% of the time when it makes a practical difference. Those 200 fps give up 2" at 300 yards and 5 inches at 400 yards with the 250grain. I want those in my pocket. For a slower trajectory one can always get a 9.3x62. With a 300 grain bullet at 2530fps one gives up 5" at 300yd (-9.6" using +3" max arc) and 12" at 400yards (-29.5" using +3" max arc). That is just too much for me to volunteer to the animal. Unless I'm bowhunting.
...

I am genuinely interested. If you are using 250gr bullets, would it not make more sense to drop to a 250gr .338 or .350 of some kind?

With monolithic bullets a person can go down at least 10% in original weight because they do not lose weight during penetration. 250 grains in a TTSX will penetrate like 275+ grains of a lead-core bullet. If you were really fortunate and got your velocity high enough to shear the petals, (3000 for .375"?, which won't happen in the Ruger) then the total penetration would be even deeper and the initial damage devastating. So 250 grains TTSX in the 375Ruger is the best of both worlds.

I have not tried the 250 ttsx in the 375 ruger but based on the 270 tsx i would not be shocked if you got 3000 fps if you have 24 inch barrel. I am not sure thats what i would use on a big brown bear over the 270 or 300 tsx or the north fork but the 250 would cook pretty good in the 375 ruger. I really don't think the bear will notice on any of them truth be known.

quote:

Originally posted by gerryb:
I have not tried the 250 ttsx in the 375 ruger but based on the 270 tsx i would not be shocked if you got 3000 fps if you have 24 inch barrel. I am not sure thats what i would use on a big brown bear over the 270 or 300 tsx or the north fork but the 250 would cook pretty good in the 375 ruger. I really don't think the bear will notice on any of them truth be known.

Yes, you might reach 3000fps in 24" barrels, but the 375Ruger is especially nice in the 20" Hawkeye Alaskan. The 40" rifle is handy and reasonably light. So plan on 2850-2900fps max with 250gnTTSX in the Alaskan.

416 tarzan Have you shot anything with the 375 ruger with the 250ttsx and do you have a favorite load I did buy some bullets just have not started might save me some time. If you have shot some animals what is your feeling on brown bear with the 250's Ihad the cz action and got a deal on 375 barrel so the fact is its 24 inches I thought i would give it a whirl before i shortened it and like i said i am pleasantly surprised. I was a huge H&H fan BUT!!!

I got an Alaskan in 375Ruger. I shot paper with the 250TTSX's, developed loads and chrony'ed things. Unfortunately the paperwork on those loads is on the otherside of the world right now. Not satisfied with the rifle's accuracy and looking for an excuse to use it for something else, I sent it away to become a 500AccRel. My other TSX/TTSX experience in that calibre range is 338 and 416. I'm not normally a 375 fan. In 338 we used 225TTSX. That worked nicely on plains game, basically exiting most everything at whatever angle. I would use it on buffalo, too, if in a country where it was legal. (I have used it in the past in other countries, successfully, but that was in my 250gnNosler Partition days, so irrelevant to your question.) The 416Rigby with 350 TSX's has worked well with both plains game and buffalo from various angles. Just last year we recovered two of them, somewhat surprisingly. One was a broadside buff shot with petals retained, the other was an insurance shot at twenty paces that lost its petals (muzzle velocity was 2850fps).

I think that the .375 250TTSX is good to go, but if you have any doubts then you can always go up in weight. Both the 338 225TTSX (SD.28) and 416 350gn (SD.29) have slightly better SD's than the 250TTSX (.254). Remember, though, that as distances stretch out to 150 yards the differences in BC allows the 250TTSX to overtake the 270 and 300 TSX's in momentum (related to penetration) and to pull away in energy (related to destruction). (PS: I would not trust a lead bullet like .375 300 Sierra on brown bear or buffalo. I had a couple come apart into a copper shell and lost core many a year ago. Also with the old 338 250 Sierra. You want a bullet that guarantees penetration.)

I agree I have shot quite a few buffalo with the TSX and no problem the only other bullet I use is north fork.I ahve not had any failure with either and 338 RUM with the 225 TTSx is a hammer.