Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Hunting
Long Range Hunting & Shooting
New build, 7mm rem mag?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="VinceMule" data-source="post: 3050916" data-attributes="member: 122164"><p>Spend some time on a ballistics program. At what point does the heavier slower 180 start being better than the 160-168 with it's higher speed? At 600 and under, there is no use in using a 180 unless you are after elk. 160-168 out to 1200 carry the freight best. Using 180's, you will need at least .210-230 of throat, which also creates another issue with Mag box length, which the Wyatts mag box will fix handily.</p><p></p><p>I use 8.75,8.5, and 8.0 twists only when needed, otherwise, 9 twists fill the bill. I have an 11 Twist on a custom 27" Pac Nor three groove in 7 STW(zero freebore)where I shoot the 140 Nosler C/T at 3675 into dot size groups along with the 120g Barnes TTSX at 3875 fps. Huge deer have flopped at 550 yards in Kansas with the 140. HUGE Kansas bucks have flopped at 550 yards with the 140C/T at 3650!</p><p></p><p>Pick your choices in throat length, and twist rate based on your actual hunting circumstances, and do not build a 1600-yard load unless you are actually going to hunt/shoot that far, impact velocity on the animal is a HUGE consideration.</p><p></p><p>You will need a gunsmith who knows how to use a unitholder or has a reamer set up for 180s as the standard 7 Mag freebore is .110.</p></blockquote><p></p>
[QUOTE="VinceMule, post: 3050916, member: 122164"] Spend some time on a ballistics program. At what point does the heavier slower 180 start being better than the 160-168 with it's higher speed? At 600 and under, there is no use in using a 180 unless you are after elk. 160-168 out to 1200 carry the freight best. Using 180's, you will need at least .210-230 of throat, which also creates another issue with Mag box length, which the Wyatts mag box will fix handily. I use 8.75,8.5, and 8.0 twists only when needed, otherwise, 9 twists fill the bill. I have an 11 Twist on a custom 27" Pac Nor three groove in 7 STW(zero freebore)where I shoot the 140 Nosler C/T at 3675 into dot size groups along with the 120g Barnes TTSX at 3875 fps. Huge deer have flopped at 550 yards in Kansas with the 140. HUGE Kansas bucks have flopped at 550 yards with the 140C/T at 3650! Pick your choices in throat length, and twist rate based on your actual hunting circumstances, and do not build a 1600-yard load unless you are actually going to hunt/shoot that far, impact velocity on the animal is a HUGE consideration. You will need a gunsmith who knows how to use a unitholder or has a reamer set up for 180s as the standard 7 Mag freebore is .110. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Long Range Hunting & Shooting
New build, 7mm rem mag?
Top