Remington 700 - 300 Win Mag??

[PALongbow]

I just bought a Remington 700 CDL in 300 Winchester Magnum. For reloading I bought the Hornady OAL guage to help assist with OAL for this particular rifle. I'm using the guage as instructed with 180 grain Nosler Accubond bullets. I keep getting readings of 3.571 OAL when measuring from bottom of the case to tip of bullet. That's longer than the maximum length of 3.340. Is this due to a good amount of free bore space in this rifle? Since the guage is showing a length that is over maximum OAL what recommendation do you guys have for seating the bullet. Where should I start??

Thanks,
Ron

 

[PALongbow]

Any help?

 

[dakotasin]

seat as long as possible. only one way to go from there to tweak the load. don't jam too hard into the lands until you get a feel for handloading that rifle.

it is an extremely rare occasion when one of my rifle loads is even in the same ballpark as book stated max length. don't get too caught up w/ col. do check to see if the ammo will fit in the mag box at your length; you're length is likely to be restricted by mag box, anyway.

good luck!

 

[PRE 64 JOE]

exactly as dakotasin said, in my model 70 .300 win mag it liked about .030 off the lands for best acuracy.

 

[45ACPUSER]

If you are hunting then common sense says you load to magazine length, but for paper punching purposes chase the lands....

 

[Casefull]

Watch for pressure signs when chasing the lands...it will cause a lot more overpressure than too much powder.

 

[Remo-99]

Is this due to a good amount of free bore space in this rifle?

200gr and up, are popular loadings for a .300win mag. Excess freebore with 180gr is less of problem than lack of freebore for the longer bullets.

Customize your loads to suit/fit your rifle (within reason) and to find your "pet load" for that particular rifle, just another benefit of loading your own ammo.

 

[PALongbow]

Thanks for the help guys. I will begin with my test loads this week. I plan on using RL22 and the 180 grain Nosler Accubond bullet. Max load in the Nosler Manual looks like 75.5. I plan on starting at 72 grains and working my way up from there. Does this sound right or should I go a bit lower/higher??

Ron

 

[Remo-99]

Alliant list 77gr max. on their site for a 180gr bullet, this is for a Speer 180gr SP. 69-70gr would be a good place to start, if I was starting a work up load, incressing in .5gr intervals, checking grouping and pressure signs along the way.