Johnn Peterson
CGN Ultra frequent flyer
- Location
- Chemainus B.C.
Johnn; I agree that the 140 TTSX should be the real performer in your 7x61 S&H. However, the 10" twist should still stabilize the 150 as well. Try both, use whichever shoots best.
The 1-12" twist in your 30-06 will work just great with all weights up to and including the 180TTSX, However, I would opt for the 150 or 168 first.
Your Norma Mag with the 1-10" twist will be fine for any TTSX up to 200 grains, but a 168 or a 180 would be my choices in it.
Usually, you can drop back a step or two on weight when you use the solid copper bullets, compared to lead core varieties. Let us know how things turn out. Regards, Eagleye.
With the 7x61 S&H, as load data isn't listed for it in the Barnes #4 manual, I've sent an e-mail to Barnes to see what they would suggest for loads. In the mean time, with my comparisons and resulting load calculations
A little 'similar' work to do with the 308 Norma Magnum as data for that caliber isn't listed in the Barnes manual either. The price I have to pay for my choice in calibers
In the not too distant future I plan to get some of the heavier Barnes TTSX for both the 7mm and 30 cal to try out. That may well end up being a reason for me to pay my first visit or 'shopping' trip to the recently opened WSS outlet in Naniamo
Oh, why I opted for something on the lighter faster side for the '06 was I thought it may go well with the slower 1:12 twist.