The Firing Line Forums - View Single Post - Another 257 roberts ack improved question

HiBC · January 25, 2012, 05:10 AM

I think what you are up against is some .257 R rifles were apparently made in short,.308 length actions,so 2.770,or 2.800,will load in a 308 length magazine.
However,this cartridge is older than the .308 and was derived from necking a 7x57 down to .257.My .257 AI is built on a Mexican Mauser.It has a longer box,and I can ,and do,load longer.

Try this.Look at the bullet.See the corner where the bullet goes from full diameter to boat tail?Seat that at the base of the neck.That is full support,with no cylindrical bullet stuffed down in the case.You might make a couple no-primer,no powder dummies and see if the work OK in your rifle.If they do,put them in your die box to speed setup.

Thats how I load mine.

January 25, 2012, 05:10 AM	#4
HiBC Senior Member Join Date: November 13, 2006 Posts: 8,286	I think what you are up against is some .257 R rifles were apparently made in short,.308 length actions,so 2.770,or 2.800,will load in a 308 length magazine. However,this cartridge is older than the .308 and was derived from necking a 7x57 down to .257.My .257 AI is built on a Mexican Mauser.It has a longer box,and I can ,and do,load longer. Try this.Look at the bullet.See the corner where the bullet goes from full diameter to boat tail?Seat that at the base of the neck.That is full support,with no cylindrical bullet stuffed down in the case.You might make a couple no-primer,no powder dummies and see if the work OK in your rifle.If they do,put them in your die box to speed setup. Thats how I load mine.