300 Win Mag barrel twist rate?

[Fordnutter]

Using an unfamiliar caliber, doesn't even know what twist rate to use for common 30 cal bullets or how fast he can make them go, but gonna go hunting animals out to 1500 yards...

I'm sorry, shouldn't have said anything, but this stuff always hits a nerve with me...

: LOL.....that is one experienced shooter that you are talking to! How does researching a relatively unfamiliar cartridge to themselves before building a custom rifle make for an inexperienced shooter?? Custom rifles cost serious $$$$ to build.... doing research is like due diligence.

Seriously this forum is a hive of very experienced shooters who come here to ask likeminded for their wealth of experience. Maybe don't jump the gun soo fast next time.

I'f only I could shoot half as good as the person asking questions

 

[4xforfun]

So far, 300WSM is most efficient in terms of accuracy and knock down power. Investigating 300 Win Mag for extra edge.
Blaser R 8 and Tikka T3 listed their twist rate as 11. Which prompted my question.

Wouldn't you know it....Blaser and Tikka!!! LOL Two guns that I have never even SEEN before. I spend most of my time with REMCHESTERBYVAGE. I agree with Jo Salt...the 300 WSM is the accuracy king in the 30 cal relm, but not by much!! The only reason I changed over is the fact that the tube life with my 300 WBY match tubes was relatively short compared to the WSM. Also, bag manners (read-recoil) was better with the WSM .

But , you are talking about LR hunting/steel. You can get by with 5 inch groups at 1000 yards...you don't need 3 inch groups. But, you may need the added HP you get with the WBY case. I am sliding away from 1000 BR and getting more into shooting ELR steel. My 300 WBY tubes are all coming out of mothballs. It is the perfect platform for shooting the 215/230 at higher velocity .

Again, just my .02,
Tod

 

[dragman]

So far, 300WSM is most efficient in terms of accuracy and knock down power. Investigating 300 Win Mag for extra edge.
Blaser R 8 and Tikka T3 listed their twist rate as 11. Which prompted my question.

Wouldn't you know it....Blaser and Tikka!!! LOL Two guns that I have never even SEEN before. I spend most of my time with REMCHESTERBYVAGE. I agree with Jo Salt...the 300 WSM is the accuracy king in the 30 cal relm, but not by much!! The only reason I changed over is the fact that the tube life with my 300 WBY match tubes was relatively short compared to the WSM. Also, bag manners (read-recoil) was better with the WSM .

But , you are talking about LR hunting/steel. You can get by with 5 inch groups at 1000 yards...you don't need 3 inch groups. But, you may need the added HP you get with the WBY case. I am sliding away from 1000 BR and getting more into shooting ELR steel. My 300 WBY tubes are all coming out of mothballs. It is the perfect platform for shooting the 215/230 at higher velocity .

Again, just my .02,
Tod

For all the ELR reason's you just said that is why I think a lot of guys are putting together RUM's, I have had a few RUM's and if the New reamer my friend just got from PTG If it is all what it says it is I might be building another one too. just think 230's going 3200-3300fps.

 

[4xforfun]

So far, 300WSM is most efficient in terms of accuracy and knock down power. Investigating 300 Win Mag for extra edge.
Blaser R 8 and Tikka T3 listed their twist rate as 11. Which prompted my question.

Wouldn't you know it....Blaser and Tikka!!! LOL Two guns that I have never even SEEN before. I spend most of my time with REMCHESTERBYVAGE. I agree with Jo Salt...the 300 WSM is the accuracy king in the 30 cal relm, but not by much!! The only reason I changed over is the fact that the tube life with my 300 WBY match tubes was relatively short compared to the WSM. Also, bag manners (read-recoil) was better with the WSM .

But , you are talking about LR hunting/steel. You can get by with 5 inch groups at 1000 yards...you don't need 3 inch groups. But, you may need the added HP you get with the WBY case. I am sliding away from 1000 BR and getting more into shooting ELR steel. My 300 WBY tubes are all coming out of mothballs. It is the perfect platform for shooting the 215/230 at higher velocity .

Again, just my .02,
Tod

For all the ELR reason's you just said that is why I think a lot of guys are putting together RUM's, I have had a few RUM's and if the New reamer my friend just got from PTG If it is all what it says it is I might be building another one too. just think 230's going 3200-3300fps.

I bypassed the 300 Rum and went to a 338 EDGE...It's just a whole bunch of a good thing!!! ;D ;D ;D My only issue with the RUM sized case (for me , anyway) is that I like to run switch BBL rigs. Now, that is not a problem with my single shot BAT's, but going to a RUM sized case in my Rem 700's made them a single shot proposition. I could modify it to feed the RUM, but then I couldn't go back to feeding the WBY/WIN mags.

 

[dalej]

The 208 will stabilize fine with an 11 twist but when going "great distance" over 1200 yards they wont stay as stable. I have always like my 10 twists but I will be personally switching too 9 twists in the future.

Been to several one mile shoots and don't believe the long range tumbling/instability cautions are valid. I've shot a 308 with 155, 165, and 176 gr bullets (12:1 twist) to one mile. The star shaped jackets at the base of target plate verify bullets were hitting nose first. Other caliber/cartridge combos that got to one mile, 6.5-284 with 140 gr (8;1), and a 7WSM with RKS progressive twist barrel 16-8:1 with 168gr. Failed to get one mile hit with 6.5X47Lapua and 140gr bullets, but another 6.5X47Lapua made the mile trip with 123gr Scenars.

 

[Canadian bushman]

Id use a 1:8 or 1:9 twist, but thats just me.

 

[Nik]

338 Edge....I handled one couple of weeks ago. Didn't seems very accurate...the owner did mentioned that he has been busy lately, not enough trigger time. Heavy 300 gr pills, muzzle brake.... bark a lot! Definitely a lot of knock down power! Considered 300 Rum too but the power/velocity restriction of some of the steel gong shoots that I go to prohibit such powerful rounds. Hence, going for the humble 300 Win Mag.

 

[007]

Late to this thread but went to a 30” 1:8.5 twist for Berger 215/230 and will also try the Flatline 198 gr. The research is in. Long, high BC bullets need the twist.

 

[LA50SHOOTER]

For all the ELR reason's you just said that is why I think a lot of guys are putting together RUM's, I have had a few RUM's and if the New reamer my friend just got from PTG If it is all what it says it is I might be building another one too. just think 230's going 3200-3300fps.

Firstly, I'm not trying to Hi-Jack the OP's original thread, just a question as discussion has included other calibers now at this point.

Is 3200-3300 fps with a 230 gr. Berger & a 30" (or longer)barrel realistic in a 300 RUM even if throated long ??
Reason I'm asking is I've run some numbers through Quick-Load and that's seems a bit on the "stout side". (And I realize Q/L is a program to be used as a tool - and all in it isn't carved in stone)
- I have 2 barrels, both are 34" long 3 grove Lilja 1-10" twist rate chambered in 300 RUM and are throated for the 230 gr. Berger with the bottom of the bearing surface sitting just above the neck / shoulder junction. (Long COAL) - Barrels are chambered up for a BAT "L" & the gun is a switch-barrel set-up. - I have not yet tried it in 300 RUM yet, and I do realize that some barrels will be faster than others.

Thanks in advance -

 

[dragman]

Firstly, I'm not trying to Hi-Jack the OP's original thread, just a question as discussion has included other calibers now at this point.

Is 3200-3300 fps with a 230 gr. Berger & a 30" (or longer)barrel realistic in a 300 RUM even if throated long ??
Reason I'm asking is I've run some numbers through Quick-Load and that's seems a bit on the "stout side". (And I realize Q/L is a program to be used as a tool - and all in it isn't carved in stone)
- I have 2 barrels, both are 34" long 3 grove Lilja 1-10" twist rate chambered in 300 RUM and are throated for the 230 gr. Berger with the bottom of the bearing surface sitting just above the neck / shoulder junction. (Long COAL) - Barrels are chambered up for a BAT "L" & the gun is a switch-barrel set-up. - I have not yet tried it in 300 RUM yet, and I do realize that some barrels will be faster than others.

Thanks in advance -

Long throated, coated bullets using RL33, bmg etc. I have seen it first hand. It's hard on brass but can be done safely

 

[LA50SHOOTER]

Long throated, coated bullets using RL33, bmg etc. I have seen it first hand. It's hard on brass but can be done safely

Thank You for your feedback and I do fully understand that it is My responsibility when I load the ammo of what the outcome will be.
I hope that I can achieve even 3100 fps and have an accurate load using the 230's. I'll be very happy if I'm able to accomplish that, accuracy will be my 1st priority along with Safety. - I have a good amount of both Norma & Nosler Brass and am running a neck-turn chamber.

Again, Thank You

 

[Drop Port]

Love the 300 Win but if I could only have one it would be the WSM. If energy on target is a factor at 1500 yards my choice would be a 300 NM or improved with the new Lapua brass should be even better and OAL from a mag is a non issue.

 

[dragman]

Been to several one mile shoots and don't believe the long range tumbling/instability cautions are valid. I've shot a 308 with 155, 165, and 176 gr bullets (12:1 twist) to one mile. The star shaped jackets at the base of target plate verify bullets were hitting nose first. Other caliber/cartridge combos that got to one mile, 6.5-284 with 140 gr (8;1), and a 7WSM with RKS progressive twist barrel 16-8:1 with 168gr. Failed to get one mile hit with 6.5X47Lapua and 140gr bullets, but another 6.5X47Lapua made the mile trip with 123gr Scenars.

It's not the tumbling of the bullet over the speed it's going. It is the twist speed of the bullet. I have seen 230 grainers in a 300WSM shoot one hole at 100, but if your short barreled or don't have a ton of speed behind it they will go sideways at long range. I have seen bullets Key Hole paper at 1000 that shot in the 0's and 1's at 100.