Originally Posted by Crop Damage
I've got an action to use for my first custom rifle. The donor is a Rem 700 BDL, currently chambered in .270 win. Will this action work for a .300 RUM, or do I need to stay with a non-magnum cartridge?
How do you decide on your barrel length? This rifle will be built strictly for shooting whitetails out to 600 yards. Usually from sandbags on a bench, occasionally from prone using bipods or a backpack to rest on. I'm not at all concerned about weight or overall length, a 25 lb rifle with a 36" barrel would be fine if it shoots tight groups.
I was hoping to shoot either 190 or 210 gr VLD's, which require different twist rates according to Berger's website. 1/12" and 1/11" respectively. Which twist rate would allow for a little flexibility in bullet weight?
There are a lot of standard bolt face cartriges available that will work and the first one that
comes to mind is the 280 Remington. It will work in your action with no modifications, It is a
.284 (7mm) with lots of bullet choices and will definitely kill deer @ 600 yards.
If you wan't a 300 RUM the bolt face will have to be opened up and the rails in the receiver
will have to be opened as well. (Nothing that any good smith cant do). also the rum will need
a heaver barrel than the 280 if you don't want to have a break installed.
For the 300 RUM I would recomend a 24" to 26" # 7 taper or contour (.850 to .925 at the
muzzle) stainless ,1 in 10 twist. this barrel will handel any bullet weight and reduce recoil
to a very pleasant level + It will shoot very well.
For the 280= a 24 to 26'' # 5 or #6 contour 1 in 9 twist would be my choice for accuracy and
J E CUSTOM