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
Group opening up after about 15 rounds
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="lisagrantb" data-source="post: 568028" data-attributes="member: 11072"><p><span style="font-family: 'Calibri'"><span style="font-size: 12px">Trying to get the kinks worked out of a new gun and having problems with this one. Here's what's happening, cold bore shot .2 mills high then the next 3 to 5 shots form a nice .5" group. After the barrel cools a bit I fire the next 8 to 10 shots at various ranges, not getting the barrel too hot. If I go back to 100 yards for group testing I find that it's hitting about an inch high and the group has opened up to 1.5 inches. I can clean the barrel and the process starts all over again. I have tried letting the barrel cool down totally and no difference, it's not until I clean the barrel that the groups tighten up.. This is my first 7WSM, can it be fouling that bad in only 15 shots</span></span></p><p> </p><p><span style="font-family: 'Calibri'"><span style="font-size: 12px">The action is Defiance and has a 27" Brux barrel. Nightforce scope meticulously mounted, I don't suspect the workmanship or components because everything is first class and I have rechecked everything. I went through the barrel break-in process and have 138 rounds down the tube, so I would think the barrel has settled-in by now. I'm pushing 180 Burger hybrid's .015" off the lands at 3000 FPS using Reloader 25. And no pressure signs at all, during load development I went to 3130 before showing pressure signs.</span></span></p><p> </p><p><span style="font-family: 'Calibri'"><span style="font-size: 12px">Any ideas </span></span></p></blockquote><p></p>
[QUOTE="lisagrantb, post: 568028, member: 11072"] [FONT=Calibri][SIZE=3]Trying to get the kinks worked out of a new gun and having problems with this one. Here's what's happening, cold bore shot .2 mills high then the next 3 to 5 shots form a nice .5" group. After the barrel cools a bit I fire the next 8 to 10 shots at various ranges, not getting the barrel too hot. If I go back to 100 yards for group testing I find that it's hitting about an inch high and the group has opened up to 1.5 inches. I can clean the barrel and the process starts all over again. I have tried letting the barrel cool down totally and no difference, it's not until I clean the barrel that the groups tighten up.. This is my first 7WSM, can it be fouling that bad in only 15 shots[/SIZE][/FONT] [FONT=Calibri][SIZE=3] [/SIZE][/FONT] [FONT=Calibri][SIZE=3]The action is Defiance and has a 27" Brux barrel. Nightforce scope meticulously mounted, I don't suspect the workmanship or components because everything is first class and I have rechecked everything. I went through the barrel break-in process and have 138 rounds down the tube, so I would think the barrel has settled-in by now. I'm pushing 180 Burger hybrid's .015" off the lands at 3000 FPS using Reloader 25. And no pressure signs at all, during load development I went to 3130 before showing pressure signs.[/SIZE][/FONT] [FONT=Calibri][SIZE=3] [/SIZE][/FONT] [FONT=Calibri][SIZE=3]Any ideas [/SIZE][/FONT] [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Long Range Hunting & Shooting
Group opening up after about 15 rounds
Top