270 - 1:10 Twist what grain?

waynewjw

waynewjw

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I have 3 - 270 rifles all with 1 in 10 twist. The two guns with 22" barrels give me better accuracy with 130 grain ammo, and the other rifle with 26" barrel gives me accuracy with 140 grain ammo.

My question is who is using 150 grain ammo with rifles in that twist and how accurate is it? Until recently, there hasn't been any 150 grain ammo around outside of the $15/box Federal stuff, but I'm wondering for hunting if anyone is getting good results with 150 grain. And if you are which brand are you using?
 
waynewjw said:
I have 3 - 270 rifles all with 1 in 10 twist. The two guns with 22" barrels give me better accuracy with 130 grain ammo, and the other rifle with 26" barrel gives me accuracy with 140 grain ammo.

My question is who is using 150 grain ammo with rifles in that twist and how accurate is it? Until recently, there hasn't been any 150 grain ammo around outside of the $15/box Federal stuff, but I'm wondering for hunting if anyone is getting good results with 150 grain. And if you are which brand are you using?
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I dont think barrell length has any bearing on accuracy you are getting, 150 grain bullet should give good accuracy with a 1-10 twist. All rifle barrels are differant, chambers, rifling, freebore, ect. Other things also come into play. Factory ammo is alot better than it used to be but, if you want real accuracy try reloading your own ammunition, then you can taylor it to a specific rifle. Good Luck, Pete
 
Pete, just what period in time are you referring to in this quote, "Factory ammo is alot better than it used to be but, if you want real accuracy try reloading -----"

Factory ammunition has been very accurate for a very, very long time. Any major company that turned out inaccurate ammunition would not be around today.
In the 1950s Jack O'Connor had an article in which he stated that eveyone who gets a reloading outfit thinks they can make ammunition superior to factory loaded. He said that in reality, they would be hard pressed to match standard, factory ammo.
Now, please spare me this bit about tayloring it to your rifle. This has about 15% truth and 85% bunk.
A good shooter with a well tuned match rifle will get great groups with factory ammunition. Probably better than you can get in your sporting rifle, with any ammunition. First priority should be to have the rifle properly bedded. If it has a good barrel, it should get good groups with any good ammunition. Beat accuracy should be with them loaded to full up pressure, just like the bench rest shooters do.
How many times have we read on these threads about someone with a new rifle that shot terrific groups, "Just with cheap factory ammo." That person was lucky in that he had a well tuned rifle, right out of the box.
 
H4831, I agree, factory ammo is accurate and has been for years, but you got alot more variety in bullets that are being loaded in factory ammo today than there was 10 -20 years ago, nosler accubonds, ballistic silvertips etc. I also agree about a good barrell will shoot almost anything, a friend of mine has a 30-06 that will shoot factory ammo into one ragged hole and makes me wonder why I reload. Unfortunately, not all rifles are the same. Reloading gives the shooter alot more to choose from, bullet weights, seating depths, neck sizing, a choice of powders and powder charges. I can develope a more accurate load in my rifles than I could with factory ammo. Atleast I think I can, cheers Pete
 
Appreciate The Feedback

I appreciate the feedback regards a good out-of-the-box rifle accuracy, bedding, etc. I agree with the points made, but back to my original question. I know there must be shooters/hunters using .270 1:10 twist rifling with 150 grain ammo. My question is what factory produced ammo are you using and what accuracy results are you getting? I will reload, but after the hunting season is over. I'm looking to narrow down the 150 grain choices with possibly 2 kinds/manufacturers and not have to purchase 5 or 6 boxes and try figure out what works best?

At the moment I'm getting very good accuracy with Federal Sierra Game Kings in 130 grain, and Federal Nosler Accubond in 140 grain. However, I went thru. half a dozen different ammo's to find these 2 were the most accurate. So I'm trying to get that feedback on 150 grains.

Comments?
 
I currently have 4 rifles in 270 and at least that many have passed through my hands before. The bottom line is that each rifle has its own "personality" and will likely shoot better with one weight than another. I have one that shoots 150 the best and another that shoots 130 the best. A rifle that shoots well will have a slight preference for one weight over the others and only testing will determine. Also, I have 1 rifle that would not shoot anything in less than a 4 " group.

After 35 years of loading, I still struggle to get some of my loads as accurate as the premium factory ammo out there. I load because I enjoy it. The days of picking any load out of the manual and being more accurate are gone. Also, we used to load premium bullets because it was the only way to shoot them. Now you can get every one (almost) in a factory load. And they shoot great.

I have had very good accuracy with Federal Premium with 150 Partition factory ammo.

I do recommend taking up reloading though so you can spend the winter evenings working on another aspect of your sport and hobby.

PS; you comment about shooters using 1:10 twist 270's? While it is likely and possible there are others, personally I do not know of any factory 270's that have had any other twist.

Good luck and let us know what you choose.
 
Yes, I'm sure 1 in 10 is the standard 270 rate of twist. I have use different varieties of 150 grain bullets in my Sako L61 and they were always accurate.
One time Dominion Ammunition loaded 160 grain round nose. They were not all that fast and that was the complaint about them, but in spite of their slower velocity, I never heard of any one saying they wouldn't stablize.
 
H4831 said:
Yes, I'm sure 1 in 10 is the standard 270 rate of twist. I have use different varieties of 150 grain bullets in my Sako L61 and they were always accurate.
One time Dominion Ammunition loaded 160 grain round nose. They were not all that fast and that was the complaint about them, but in spite of their slower velocity, I never heard of any one saying they wouldn't stablize.
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If the bullet you are referring to is the old CIL 160 gr. KKSP, they are wonderfully accurate in my 270 Husky and my pre-64 Win., and I think are the tightest grouping bullet in my 270-08.
Over the years I've taken a lot of different game with them and had good results.
My only regret is that I'm down to my last 7 or 800. :(
 
Factory ammunition has been very accurate for a very, very long time. Any major company that turned out inaccurate ammunition would not be around today.
In the 1950s Jack O'Connor had an article in which he stated that eveyone who gets a reloading outfit thinks they can make ammunition superior to factory loaded. He said that in reality, they would be hard pressed to match standard, factory ammo.
Now, please spare me this bit about tayloring it to your rifle. This has about 15% truth and 85% bunk.
Well I just have to add to this Sorry I know this is not what you are
looking for . But you can have the best bedding and the best barrel
at any competition range and you will see reloaded ammunition
not Factory loads .So Old Chucky needs to get with the times . There
is good reason the Best shooters Reload there Ammo . I haven't
got time or space to tell you all the reasons
 
muckle said:
Factory ammunition has been very accurate for a very, very long time. Any major company that turned out inaccurate ammunition would not be around today.
In the 1950s Jack O'Connor had an article in which he stated that eveyone who gets a reloading outfit thinks they can make ammunition superior to factory loaded. He said that in reality, they would be hard pressed to match standard, factory ammo.
Now, please spare me this bit about tayloring it to your rifle. This has about 15% truth and 85% bunk.
Well I just have to add to this Sorry I know this is not what you are
looking for . But you can have the best bedding and the best barrel
at any competition range and you will see reloaded ammunition
not Factory loads .So Old Chucky needs to get with the times . There
is good reason the Best shooters Reload there Ammo . I haven't
got time or space to tell you all the reasons
Click to expand...


Thanks for agreeing with me. The group of shooters you refer to are among the 15% I quoted, who benefit from handloading taylored for their rifle.
 
I've shot 130, 150 and the aforementioned 160gr KKSP in my Remington 700 BDL, all with very good accuracy.

I would not worry a wink about twist rate in factory .270 barrels using any commonly available bullet weights. Even if someone made up some custom 200gr bullets for the .270, the only way to know if they would work in your rifle is to try them.

I'm just a common hunter and not a long range precision shooter, but I think that WAY to much commotion is made about twist rates, at least in regards to their importance to hunters and casual shooters. You would be surprised how many "ignorant" guys there are out there who load anything that is the proper diameter into their rifle and shoot it all day long without a problem.

Too much UFI can lead to paralysis by analysis and I think twist rate is one of those UFI factors.
 
Twist , make to much of it

Perhaps twist doesn't matter in the face of ignorance, but I have found it certainly does in certain rifles i.e. CZ 527 Varmint 1:9 twist vs my friends rifle 1:12. The CZ would only shoot the lighter weight ie. 45 grain and didn't like the 55 grain and up. Friend shoot 62 and 68 grain stuff with accuracy but his rifle didn't like the 45 gr. stuff. So....sometimes you have to take twist and grain into consideration.

Otherwise take a wheel barrow of bullets out to the range and get it on!
 
H4831 said:
Thanks for agreeing with me. The group of shooters you refer to are among the 15% I quoted, who benefit from handloading taylored for their rifle.
Click to expand...

Well I would a agree maybe if you change the %'s around I believe there is more truth to Handloading and tailoring loads to your chamber and rifle Than 15 % truth .and 85 % BS .But I guess if you are shooting a large target at close range any old ammo will do.And for that matter Barrel and Bedding will not be that big of a concern.
 
waynewjw said:
Perhaps twist doesn't matter in the face of ignorance, but I have found it certainly does in certain rifles i.e. CZ 527 Varmint 1:9 twist vs my friends rifle 1:12. The CZ would only shoot the lighter weight ie. 45 grain and didn't like the 55 grain and up. Friend shoot 62 and 68 grain stuff with accuracy but his rifle didn't like the 45 gr. stuff. So....sometimes you have to take twist and grain into consideration.
Click to expand...

I think you mixed the twists with what shot well...

Quicker twists shoot longer (heavier) bullets better than slower twists.

In the case of the 270, 1 in 10 pretty well handles them all...

.
 
muckle, this is your quote--"---.But I guess if you are shooting a large target at close range any old ammo will do.And for that matter Barrel and Bedding will not be that big of a concern."

If this is me you are referring to, I would think you should find out a few things before going at the keyboard.
Here is a picture of some of my shooting trophies, which I won, mostly with large rifle, but two or three are pistol trophies. The bullseye patch in upper right was for shooting on the four man team that won the BC small bore pistol championship in 1974.

trop004.jpg
 
Your trophy's are very impressive It's make it clear you have spent the time at the range
and time at the reloading table and are a knowledgeable shooter.

But just have to ask did you win all that hardware with reloads
or did you use factory ammo ?

Cheers Muckle
 
I guess I wasn't too clear on my first posting on the matter. I always reload. The big revolver trophy and all the rifle trophies were won with reloaded ammo. However, because in all the competitions the rifles had to be handheld, usually from prone, but no rest, I never, ever, tweaked ammunition to better suit a particular rifle. My rifles are very carefully bedded, so they shot all good ammunition better than I can hold them.
Actually, if CIL or Norma for example, would have supplied the ammo, I would have gladly used it and saved a lot of work reloading. Norma, especially, was sure good rifle ammunition. I used to shoot it in Schultz and Larson rifles in 7x61 and 308 Norma Magnum, and I don't think I ever made better groups with reloads than I made with their factory ammo.
Cheers, Bruce
 
target.jpg
Bruce heres a target that was shot with my schultz&larsen model 65 chambered in 308 norma, the 1st group is on the right, then moved my scope over and shot 2nd group, both are 3 shot groups with reloaded ammo, 165 gr hornady btsp with 74 gr of imr4831. Thought you might be interested as you also have or had a schultz. Sorry for getting off the topic. Cheers Pete.
 
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