.308 win F/TR chamber

[LVLAaron]

It tells you that it's ballistically inferior to a 200g going 2700+

Plugging your speeds and bullets into https://shooterscalculator.com/ is time well spent.

 

[cmillard]

What i meant was the increase in charge weight and drop in MV.....not sure if it was a chrony issue or if it just happens sometimes. Thanks for the link, I've never used that site. I have used JBM and have applied ballistics app....but I really haven't messed around with any of that yet with this rifle

 

[LVLAaron]

 

[LVLAaron]

 

[LVLAaron]

In MY experience (emphasized because people will argue about this until the cows come home) - The spot where the velocity flattens out or dips a little bit, is the spot I want to be, and I tune around that. I don't shoot BR. I shoot F-Class so take that for what it's worth. In my first image, 44.5 is the load I landed on and used for a very long time across many barrels.

Why does velocity go down? Call it a flat spot, call it positive compensation, I don't know. Tide goes in, tide goes out, can't explain that. I just know it is useful information for ME.

 

[cmillard]

Interesting. Thank you. Well, given my current schedule, not sure if it will ever get back into F-class, its more of a tinkering thing and for when I go out west and take the guns along to stretch the distance. Have you found that to be the case for all powders or just what you are shooting in that rifle?

 

[LVLAaron]

I use it for any rifle setup.

 

[cmillard]

Got ya. I'm now out of the 215s and will find some SMKs in 200 and 230s and get some alpha brass. With the barrel broke in, i want to set aside this federal gold medal brass I have amassed over the years and try some good brass in it as I've never tried alpha.

 

[LVLAaron]

Do you have berger 200 hybrids? DM me your address and I'll send you a bag of sorted and pointed hybrids.

 

[Acyr]

Do you have berger 200 hybrids? DM me your address and I'll send you a bag of sorted and pointed hybrids.

He'd be better off with 175-185's.

 

[LVLAaron]

I'll send a bag of juggs too

 

[cmillard]

No I don't. Thanks for the offer, but I can't accept that. I will get some bullets shortly.

 

[LVLAaron]

No I don't. Thanks for the offer, but I can't accept that. I will get some bullets shortly.

Yes you can. Send me an address. What good is a community if we can't help each other. I have thousands and thousands of each and I will not shoot them any time soon. Happy to send them to someone who will use them.