No need for more than 150 gr in 30 cal

Pheroze

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When considering monometals the 150gr has proved itself to be totally adequate in 30-06 and 308W. My son used 150gr GS Custom in a 308W for a clean pass through shot on a wildebeest. I used 150gr GMX on a large boar with my 30-06. Yet, the Barnes folks recommended 180gr for my 308 Norma Mag. I thought this odd. Especially as Cutting Edge Bullets recommended their 145gr ESP (149gr w/ the tip) for moose, bear and deer in that caliber.

I am thinking the same must hold true for modern lead core bullets. With close to 100% weight retention typical with some, me thinks any 30cal can drop to a lower weight.

Maybe the way the bullets expand contributes to the need for a higher weight? The Barnes folks certainly know their stuff, so who m I to question the recommendation. Perhaps the way lead/Barnes expands has a higher drag effect? The GS Customs and CEB both form that blunt wadcutter shape which they claim creates a larger permanent wound channel. But, even considering this, I just dont think 180gr is needed for any application that a 30 cal is useful for. So, why do we still use it when loading modern bullets? It would seem 150gr is the way to go, maybe 165gr for a higher BC?
 

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I am using the 150 Barnes TTSX in my 30-06 and 165 Barnes TTSX in my 300 WM. So far they have worked well on antelope, mule deer and coyotes.
Still, I really like the confidence a 200 gr Nosler Partition or 200 gr Swift A-frame have given me in the past.
 

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When considering monometals the 150gr has proved itself to be totally adequate in 30-06 and 308W. My son used 150gr GS Custom in a 308W for a clean pass through shot on a wildebeest. I used 150gr GMX on a large boar with my 30-06. Yet, the Barnes folks recommended 180gr for my 308 Norma Mag. I thought this odd. Especially as Cutting Edge Bullets recommended their 145gr ESP (149gr w/ the tip) for moose, bear and deer in that caliber.

I am thinking the same must hold true for modern lead core bullets. With close to 100% weight retention typical with some, me thinks any 30cal can drop to a lower weight.

Maybe the way the bullets expand contributes to the need for a higher weight? The Barnes folks certainly know their stuff, so who m I to question the recommendation. Perhaps the way lead/Barnes expands has a higher drag effect? The GS Customs and CEB both form that blunt wadcutter shape which they claim creates a larger permanent wound channel. But, even considering this, I just dont think 180gr is needed for any application that a 30 cal is useful for. So, why do we still use it when loading modern bullets? It would seem 150gr is the way to go, maybe 165gr for a higher BC?

I think we may have already undergone a weight reduction with the bonded and or structurally enhanced bullet designs. Hang with me...

Regular cup & core bullets work well in the heavier weights. Why? I believe the heavy for weight cup & core bullets keep the velocity in a region where a standard bullets performs best, say 2200 -2700 fps. These bullets tend to hold together at these velocities, drive deep due to the high sectional density, even if they lose a portion of the bullet. Let’s say a 200 gr bullet out of an 30-06. But out of a 300 xyz Magnum, these heavy bullets can be driven above 2800 fps and out of the working velocity range, especially if a shot is taken at close range. John Nosler brought out the Partition bullet to ensure enough penetration on tough higher impact velocity shots and the trend in lighter bullets began.

The newer bonded and or structurally enhanced lead core bullets hold together much better and tend not to lose as much weight as a standard cup & core. Hunters recognized these tougher bullets hold together at higher velocities and can extend the field range. Probably the most popular weight for larger game in 30 cal is the 180gr. There are some who still prefer the heavier 200gr bullets but you don’t see too many of these in hunting reports. The newer design bullets tend to shoot flatter, drive deep, mushroom in a smooth wide frontal area and do a great bit of damage. Many times the hide catches the bullet on the far side even on very heavy bullets like a Swift or Northfork due to the wide mushroom. With these new bullets we have dropped weight from the old cup and core. I really like a 165gr Partition in the 30-06! The lighter bonded bullets can be driven fast but even the designers would say they have an upper limit and I would guess a 150 gr Accubond out of the 308 Norma at 3200fps would severely stress the bullet at close impact ranges and limit penetration.

The monometals bring in a new dynamic in a couple of ways. They are long for their length, a 165 gr Barnes/Peregrine/GMX is a very long bullet, These are as long as a 200gr cup and core (spritzers, round or flat nose tend to be shorter). The monometals like velocity to open quickly, it’s difficult to drive the very long monometals at high velocities in the standard cup and core weights and have enough velocity to initiate expansion at longer ranges where the velocity is around 2000 fps. Of course, bullet designers can adjust velocity performance by nose design, hollow point width and depth etc. As with your positive experience with 150gr GMX, I used 165gr Peregrine bullets extensively in Africa last year. Drove them completely through a Zebra and Waterbuck and every other animal I shot. I did catch one in a Zebra that was shot at a tad over 200 yards and a large Kudu angling away and through the shoulder. Fantastic performance as they expanded even on a slab sided Civet at close range without a gigantic hole.

So we have gone from 200gr cup and cores to 165 & 180 gr bonded / structurally enhanced bullets to the relatively lightweight 150/165gr monometals.

Can we shoot lower weight bonded bullets, say in the 150 gr range for heavier plains game? Probably, but you may end up giving away penetration on angling shots where you want to reach the vitals. If I was going to shoot lighter bullets, I would stay with the monometals and not risk the chance.

Why did Barnes recommend the 180 gr, good question. What velocity can you drive the 180 vs the 165gr? I’m only guessing here, but would think the 180 gr Barnes couldn’t be driven any faster than 2850 where the 165 gr should get you well over 3000 fps. Do they think the petals may come off at higher velocity during penetration, which may not be a bad thing! I would use the 165gr and drive them fast.

Could they have confused the 308 Norma Mag with the relatively new 300 Norma Mag? I would definitely use the 180gr in the big cased 300 Norma!

Just some ramblings on a Sunday morning,
Edge
 

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never had a problem with 130-150gr TTSX in the 308w or the 30-06. I use 150gr TTSX in the 300WM. I always used 150gr Par Nolser bullets in all 3 cartridges but I really like the 165 gr Swift A-Frames in the 300WM. Never saw a need for 180 or 200 gr bullets in 30 cal.
If I want 200gr bullets I will use 225gr A-Frames in my 338WM or 185-210gr TTSX but really like the A-Frames.
 

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I’ve been thinking about this lately. With these monometals, it seems going lighter doesn’t hurt anything. I’m really interested in running a 180gr Barnes out of a 35 Whelen or 358 Winchester. I might buy some 130gn to experiment with in my 308.
 

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For Buff, sure a heavy bullet, especially in a 30 cal.
 

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I’ll keep running 180s (TSX and Hydro) in my .300H&H on buffalo, but I do think you’re right about softer game.
Next time you drop a buffalo - after it is down- it would be interesting to see what kind of penetration a lighter slug gets. Especially the hydro which I suspect will core right on through
 

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When considering monometals the 150gr has proved itself to be totally adequate in 30-06 and 308W. My son used 150gr GS Custom in a 308W for a clean pass through shot on a wildebeest. I used 150gr GMX on a large boar with my 30-06. Yet, the Barnes folks recommended 180gr for my 308 Norma Mag. I thought this odd. Especially as Cutting Edge Bullets recommended their 145gr ESP (149gr w/ the tip) for moose, bear and deer in that caliber.

I am thinking the same must hold true for modern lead core bullets. With close to 100% weight retention typical with some, me thinks any 30cal can drop to a lower weight.

Maybe the way the bullets expand contributes to the need for a higher weight? The Barnes folks certainly know their stuff, so who m I to question the recommendation. Perhaps the way lead/Barnes expands has a higher drag effect? The GS Customs and CEB both form that blunt wadcutter shape which they claim creates a larger permanent wound channel. But, even considering this, I just dont think 180gr is needed for any application that a 30 cal is useful for. So, why do we still use it when loading modern bullets? It would seem 150gr is the way to go, maybe 165gr for a higher BC?
Heavier is more accurate. I am working hard with load for .300 RUM and 7mm Mag and the Barnes heavier weight bullets are THE most accurate. I have just returned from the SAAM shooting school and learned a lot. Again! The i structures said in their experience that Barnes, even with a lower BC, is more accurate than many other bullets. It worked for me. I am shooting 160g Barnes in 7mm and 180 grain in the RUM.
Best of luck
 

Divernhunter

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^^^ I get groups that are one ragged hole type and you need to consider to get good/excellent terminal performance you need speed with Barnes(and other mono)bullets. You can have microscopic accuracy but if the terminal performance suffers you gained nothing and may have just wounded the animal.
Yes the RUM will probably push the 180 fast enough but the 7mag(if it is a rem mag) may not do well with the 160gr Barnes.

Just speaking from my(and friends) research and experience yours may be different.
 

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Accuracy of 150 Barnes factory TTSX in my old Remington 78 (cheap 700) 30-06 is excellent. Interestingly according to Barnes the 150 is designed with an extra groove for loading in the 300 WM. As you can see in the second photo the factory loaded 150 is missing a groove where as the hand load at the same COL shows the extra groove.
 

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My 300 WM handload shoots the 165 Barnes TTSX really well! This load is also from the Barnes website, but 100 FPS faster than their factory 165 loading. No complaints from me!
 

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^^
Yes the RUM will probably push the 180 fast enough but the 7mag(if it is a rem mag) may not do well with the 160gr Barnes.

Just speaking from my(and friends) research and experience yours may be different.

I have taken a 7mm to africa a couple of times. My load has been a 160 gr AB at 3000 fps. I've also used the Barnes bullets in a couple of other rifles. My experience is at 3000 fps they will open up fine to longer distances than what most of us will shoot them when you start them at those speeds......
Bruce
 

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I have been using Barnes for a while now and love them. However, I would be trepidatious to use a lightweight bullet (150gr) in anything faster than a 300WM. I personally prefer the 180gr in the likes of the 300 Wby.
 
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When considering monometals the 150gr has proved itself to be totally adequate in 30-06 and 308W. My son used 150gr GS Custom in a 308W for a clean pass through shot on a wildebeest. I used 150gr GMX on a large boar with my 30-06. Yet, the Barnes folks recommended 180gr for my 308 Norma Mag. I thought this odd. Especially as Cutting Edge Bullets recommended their 145gr ESP (149gr w/ the tip) for moose, bear and deer in that caliber.

I am thinking the same must hold true for modern lead core bullets. With close to 100% weight retention typical with some, me thinks any 30cal can drop to a lower weight.

Maybe the way the bullets expand contributes to the need for a higher weight? The Barnes folks certainly know their stuff, so who m I to question the recommendation. Perhaps the way lead/Barnes expands has a higher drag effect? The GS Customs and CEB both form that blunt wadcutter shape which they claim creates a larger permanent wound channel. But, even considering this, I just dont think 180gr is needed for any application that a 30 cal is useful for. So, why do we still use it when loading modern bullets? It would seem 150gr is the way to go, maybe 165gr for a higher BC?
@ Pheroze
My son used the 150 grain accubonds and a monometal Australian made 140grain outer edge projectiles for his plains game in 308 Winchester and didn't recover a single projectile. Game included burchells zebra and Oryx. I can understand using heavy for caliber with the non bonded cup and core but not the new bonded or monos.
Bob
 

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I've deer hunted quite a bit with Barnes TSX in 30/06 and 308 Win over the years. I've had excellent results with 130 and 150 grain bullets. I've yet to recover a bullet, and all have expanded as designed, according to the exit wounds. The only thing I see with these bullets that I don't always see with a softer bullet is, game sometimes runs a bit further when hit through the ribcage, and no shoulder bone is encountered. The 130 grain does seem to kill a bit quicker than the 150, and I believe this is due to the higher MV.
 

Pheroze

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It's funny, I worked up a load for the 149gr CEB raptors in my 308 Norma Mag, and was quite pleased...and then promptly bought 180gr Swift Aframes. I don't feel right going after a moose with the smaller projectile. Just a vague sense of insecurity
 

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This is interesting, as I’m just going to start cooking up a load for a 300H&H. Also, I picked up a box of 168 and 180 ttsx to test in two 30-06’s I bought and haven’t really had time to try out!

I was considering 200 or 180 for moose/elk, but maybe dropping down is in order.
 

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180 gr or more is just too heavy for a 30-06. You cannot get enough speed to get good expansion all the time. The TTSX is more reliable for expansion compared to the TSX.

I use the 130gr TTSX in my 308win. I also use the 130gr or 150gr TTSX in my 30-06. I use the 150gr TTSX in my 300win mag. I use the 100gr TTSX in my 6.5X55 and 264win mmag and the 127LRX in my 6.5X300W. I use the 80gr TTSX in my 257R and 25-06 and the 100gr TTSX in my 257W. I like the 110gr TTSX in my 7-08 and the 185gr TTSX in my 338win mag. The 165gr TTSX is what I use in my 338Federal.
 

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