270 WIN OCL with 140 Partitions

[tjen]

What OCL have you had accuracy with using 140 grain PT,s with H4891sc? 3.340" is way out there and most of the OEM I have ammo is around 3.280". What is Nosler's ammo 140 OCL at? I was thinking of 3.300" and shorten them to tune for where my gun likes them.

Is 2900 fps realistic in a 22" barrel? I would happy with a tight group at 2850 fps.

 

[Bruce Mc]

3.340 is the standard length. How long is the magazine of your rifle and what oal will fit in your chamber? My model 700 classic .270 can be loaded to an oal longer than 3.340.

I have no experience with the 140 Partition and H4831sc, but there are a number of powders than will easily hit 2900 fps, even in a 22" barrel.

 

[boomer68]

I am using 3.320"

 

[tjen]

I loaded some 140 BT's at 3.340" with V100 and the 140 PT's at 3.320" with H4830sc. Nosler does not state what OCL they tested at while other Manuels do. Same rifle a REM 700 270 WIN Classic Glass bedded and free floated, trigger set to 3.5 lbs. Wears a VX3 2.5-8 scope. Most accurate load was the OLD Rem extra range 140 gr. (1/2" cc groups) best groups about 1.25 " with a few OEM ammo in 140-150 grain. So Now I need to taylor some reloads to it and the 140 gr PT will do any thing I want from a 270 Win.