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The standard factory twist rate for the .243 Winchester cartridge is 1 in 10"; for example, a used in Win. Mdl 70's, Rem's Mdl 700, and Ruger's 77. Custom barrel makers make other twists available, as slow as 1 in 12" and as fast as 1 in 8". The 1 in 9", has become useful in shooting heavier 100 gr. plus bullets, such as the 115gr DTAC for very long distance accuracy. To measure the twist of a barrel, fit a tight patch on a jag or on a bore brush, insert into rifling a bit from the chamber end (preferably), and place around the rod a piece of masking tape about 15" back from the rear of the action and mark a '+' on the very top of tape, now also magic mark your rod right at the point where it enters rear of action. If you must use the muzzle end of barrel to do this test, then put this mark where it just enters your barrel. Now slowly push rod into rifling allowing it to rotate as it follows the twist until your '+' mark has rotated one exact revolution. Now mark the rod again exactly at same point it enters rear of action (or barrel). Withdraw the rod so you can measure the distance in inches between the two magic marks on the rod...that will be your the twist rate, i.e. one turn in so many inches. Repeat to be sure. You may have to adjust your tape spot further back or use a longer rod when measuring very slow twists as found in muzzleloaders.
What else can I help you with?
What is the barrel twist on a Winchester model 670 in a .243?
The twist rate in a Winchester 670, 243 caliber is 1:10.
Winchester model 88 barrel twist rate in 243 cal?
1/10
What rate of twist was the rifling in a Model 88 in 243 Winchester?
Most likely 1/14
What is the twist rate for a Winchester Model 70 in 243 WSSM?
Your rifles twist rate is one turn in 9inches/1 in 9.this is for a 223 cal
What is the twist rate in Barrel Winchester HV 243 Rem Model 70?
The twist rate for the Winchester Model 70 in .243 Remington is typically 1:10 inches. This means that the barrel will complete one full rotation for every 10 inches of bullet travel. This twist rate is designed to stabilize bullets weighing between 75 and 100 grains effectively. Always check the specific model details, as variations may exist.
What rate of twist was the rifling in a L579 Sako Manlicher in a 243 Winchester?
1/10
What is the twist rate for a Remington 243 model 760?
The Remington Model 760 in .243 Winchester typically has a twist rate of 1:10 inches. This means that the rifling makes one complete turn every 10 inches of barrel length. This twist rate is designed to stabilize bullets weighing between 85 to 100 grains, making it suitable for a variety of shooting applications.
What is the rifling on a pre-1964 model 70 243?
if you mean the rate of twist, it should be one in 12 inches
Twist rate of rem 700 adl 243 22 barrel?
Remington 700 .243 twist rate is: 1 in 10" you can google it like I did.
What is the value of a 243 Winchester Model 7?
No such model number
What year did Winchester come up with the 243?
The 243 Winchester caliber was introduced in the model 70 bolt action and the model 88 lever action rifles in the year 1955 by Winchester.
What is the twist rate of Westernfield M782 in 243 cal?
This rifle was built by Mossberg and was labeled the 800B. The "B" series was sold thru Montgomery Wards and other large reatilers. All Mossberg model 800 .243 rifles manufactured had a twist rate of 1 in 10. So I believe it is safe to the twist rate is 1 in 10.
