Savage 10 FCP-SR (2015) short throat????

[RebReed]

Hello,
This my first post so I apologize if I screw up.

I just purchased a 2015 10FCP-SR .308 24in 1-10 twist. I am going to build up some hand loads for this. Here is my concern/question. Using the Hornady OAL and comparator w/ 168gr Amax, I have consistently come up with a 2.195 CBTO.......does that seem extremely short? My ultimate goal is to setup with the 175-185 Bergers and ping steel at 1000yrds but I have 500 Amax's just sitting around for the time being.


thanks again

[cowtownup]

what is CBTO?

[RebReed]

Case bottom to ogive. It's the length where the ogive of the bullet hits the lands

[cowtownup]

2.280 is my CBTO on the 168 SMK in my 308...

2.248 is my CBTO on the 175 TMK in my 308...

I'm not sure what would be considered a short throat, I'm just giving you this information so that you can compare...

[RebReed]

Thanks, I'm thinking it is shorter that usual. I have read where some of them come from the factory short. I'm just wondering what impact it will have with trying the larger grain bullets.

[cowtownup]

Well, thats .085 shorter than the throat in my barrel (assuming 168 amax and 168 SMK have similar measurements to ogive). I just ran that CBTO on my load in QuickLoad and it adds about 3600 PSI to the chamber pressure. That equates to 0.9 grains of charge with IMR-4064 which is what I'm using.. So almost a full grain of charge..

This is just some information to think about.. That rifle may be a shootin' mofo once you get that thing dialed in.. I see you concern, but I'm not wise enough to tell you one way or the other... Good luck with it...

[RebReed]

Thanks for the feedback. I guess I really won't know until I start working up the loads. If all else fails I could take a trip to the gunsmith.

[FW Conch]

What is the Over All Cartridge Length of the 168grn round that touched the lands?

[RebReed]

The COAL with the 168 AMAX is 2.813

[FW Conch]

That would seem to be within SAMMI specs, however it could be on the short side of what you want to do.

[swadiver]

The COAL with the 168 AMAX is 2.813

I have the same rifle. with the 168 Amax's, touching the lands at 2.185/2.810, just about the same as yours

[RebReed]

I have the same rifle. with the 168 Amax's, touching the lands at 2.185/2.810, just about the same as yours

Thanks, I have figured out that the 168 Amax and the Berger VLD175-185s are shaped quite differently, with most of its length in the nose. The base-to-ogive of the berger is much shorter that the amax. That was great news when i discovered it, those will ultimately be my pills, the only issue i foresee is they probably wont mag feed. For now I will shoot up the 168 Amaxes I have left.

[swadiver]

The 168 gr Amax's shoot pretty good in my rifle with 42.5 grs of Reloader 15 in Federal cases. they are loaded .010"-.015" off the lands