Sierra 165gr Gamechanger 7mm Bullet Performance?

Montana73

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Nov 12, 2019
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253
Location
North Carolina
Am interested in this bullet. Could see .610 BC in my 7 STW which is better than the 160 Accubond. Since it is based on a thicker wall Matchking could be a nice bullet.

Has anyone used this bullet. Hoping to use in a 1:9 twist barrel.
 

Hunterjones

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Joined
Nov 30, 2019
Messages
40
Location
Wyoming
I have shot a bunch of them out of several rifles which have proven very accurate with other bullets and I still have not found a gun that really likes them yet......
 

cohunt

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Jan 21, 2016
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2,249
Location
Colorado Springs, CO
tried them in my 7rem mag, the eld-x seemed to expand better than the GC and I couldnt find a load any better than 1.25 with the GC (but didnt try too hard to find it either)
 

zr600

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Jan 16, 2018
Messages
528
Location
Nd
I have shot them in mine it’s a criterion barrel 26” barrel 1.8 twist had a good node around 2950ish. Barrel speed up to 3050 ish same load after 200 rounds or so groups opened up some but I think if I backed it off to the 2950ish it would be good again. It was shooting .5moa at 100 with good es/sds at the 2950 FPS range.
 

CEB

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Joined
Jan 24, 2018
Messages
35
I shoot them in one of my 7WSM with a Brux #3 1-8.5" twist at 3030fps. Shoots them fairly well, 3-4" groups at 500 yards, but never been fully satisfied with the accuracy. No shots on aniamls yet.
 

crazyhorse

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Joined
Oct 31, 2004
Messages
292
Location
southeast
Same story as the others...

Just couldn't get them to shoot in my 7RM which is a rifle that shoots everything else I've played with from Hammers to Hornady. I tried them for a couple of reasons 1) Sierra traditionally produces very accurate bullets 2) I have a shooting partner who uses them in a 280AI and they shoot sub-half moa and have performed flawlessly for him on whitetail. They seem to perform very similar to an Accubond in a hunting application.
 

CEB

Active Member
Joined
Jan 24, 2018
Messages
35
I do shoot the 165s in a 300WSM Winchester Extreme Weather and have been very happy with their accuracy. Also did a ladder test with the Gamechanger in my 280AI and it showed promise but never tested it any further. So I think they are worth trying out.
 

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