What Bullet Weight For A Ruger No.1 .270 Winchester w/20" Barrel 1:10 Twist Rate?


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parker51
September 25, 2010, 02:39 AM
I have tried numerous different loads for this rifle and the best I have come up with gets a 2" group @ 100yds if I let the barrel cool for 3 minutes in between shots. This has been my primary deer rifle for the past 4 years and the main reason I feel comfortable using it is that I know the first shot is going to be aproximately 1" high at 100yds. Anyone load for this rifle and if yes, can you tell me what weight bullets you would recommend? Right now I am shooting 140 gr. Winchester ammo since I haven't been able to come up with a decent load yet. Best I've got so far is a 4 to 5 inch group of 5 using the Winchester ammo with sufficient time allowed for the barrel to cool. Thanks!

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steveno
September 25, 2010, 04:39 AM
the best shooting bullet in my Ruger #1A in 270 was the 160 grain Nosler Partition with H-4831 powder. groups of an inch or less was common all of the time

Remo-99
September 25, 2010, 09:07 AM
Don't have a Ruger #1, but my rifle could shoot 130gr Sierra's with 54gr H4350 well any day of the week. ;)

rbernie
September 25, 2010, 12:33 PM
I commonly run a reduced/youth load in my Ruger #1 270; 115gr Hornady HP/OTM (designed for use in the 6.8SPC) over 41gr of H4895. That's good for maybe 2900fps and is more than adequate for Texas-sized deer, and it reliably gives me MOA-ish performance (five shot groups). The lower velocity seems to more than offset the short/light bullet.

rcmodel
September 25, 2010, 12:50 PM
Your accuracy problem isn't the bullet, it's the rifle.

Ruger #1's either come out of the box and shoot like gangbusters, or they shoot like crap. There seems to be little middle ground.

A simple fix is usually the change in barrel pressure from the forearm hanger.
Suggest you study this out in detail, then make the necessary changes that best fit your gunsmith abilities.

http://www.varminthuntinginternational.com/accurizingnoruger.html

rc

Red Cent
September 25, 2010, 02:23 PM
http://www.snipercountry.com/hottips/TwistRate.htm

rcmodel
September 25, 2010, 02:34 PM
Your 1/10 twist rate has been the standard for the .270 Win since it came out in 1925.

Whatever your problem is, it has nothing to do with shooting any standard weight (90 HP - 180 RN) .270 bullets in 1/10 rifling. With that said, if it won't shoot 130's or 140's well, it probably won't shoot anything well.

rc

NCsmitty
September 25, 2010, 05:41 PM
if it won't shoot 130's or 140's well, it probably won't shoot anything well.

Sad but true, they are beautifully designed, but can be finicky and even evil when it comes to grouping. If they wont shoot Sierra 130gr GK's well, then you need to listen to rcmodel's advice, and fiddle with the forearm to see if that will help.



NCsmitty

parker51
September 26, 2010, 01:30 AM
Your accuracy problem isn't the bullet, it's the rifle.

Ruger #1's either come out of the box and shoot like gangbusters, or they shoot like crap. There seems to be little middle ground.

A simple fix is usually the change in barrel pressure from the forearm hanger.
Suggest you study this out in detail, then make the necessary changes that best fit your gunsmith abilities.

http://www.varminthuntinginternational.com/accurizingnoruger.html

rc
After spending too much on this gun and scope I really hate having to admit that the problem is with the gun and not me or my reloads. I have 2 other .270's that shoot great with both commercial and reloads I have used in them. Not sure that I am qualified to make any of the 3 adjustments discussed on this page but I may end up giving the 3rd option a try if I can't locate a gunsmith that will do the job properly. I believe we only have 1 or 2 gunsmiths in this area and from what I've heard any job it about a 3 to 6 month wait. Thanks for the link.

Captcurt
September 26, 2010, 07:55 PM
Your accuracy problem isn't the bullet, it's the rifle.

Ruger #1's either come out of the box and shoot like gangbusters, or they shoot like crap. There seems to be little middle ground.

A simple fix is usually the change in barrel pressure from the forearm hanger.
Suggest you study this out in detail, then make the necessary changes that best fit your gunsmith abilities.

http://www.varminthuntinginternational.com/accurizingnoruger.html

rc
This is so true. #1's are notorious for this. The two piece stock is the main reason. If it isn't fitted 100% properly You can have problems. All in all, a 2" group out of one of these guns is better than average.

I have owned and shot several 270s and the best load that I have found for the majority of them has been Win brass, cci primer, 130 gr., Speer Hotcore FB with 54grs. of IMR4350. Normally, if they don't shoot this load they don't shoot any very well.

If you enjoyed reading about "What Bullet Weight For A Ruger No.1 .270 Winchester w/20" Barrel 1:10 Twist Rate?" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!