Long Range Hunting Online Magazine

Go Back   Long Range Hunting Online Magazine > Hunting > The Basics, Starting Out


338 win mag accuracy

LinkBack Thread Tools Display Modes
Unread 02-28-2008, 02:17 AM
Gold Member
Join Date: Feb 2008
Posts: 956
I'm just wondering if you are shooting those groups straight after cleaning the barrel.I've always found for accuracy grouping that if I shoot 2 fouling shots first,I always get better groups.
Have you tried different seating depths,especially with the Accubonds,I found they shot best when seated .020"-.030" off the lands(in my Win Model 70 Classic Stainless 26" barrel).
Just a couple of thoughts that might help you out.

P.S I just thought that if you try RE19 above the max load Alliant recommends,it might work for you,it worked for me,I was getting under ignition problems.Accubonds/Ballistic Tips seem to create less pressure with the loads listed in most manuals(to me,with case head expansion)
But obviously,keep a sharp watch on pressure!
Reply With Quote

Unread 02-28-2008, 09:33 PM
Bronze Member
Join Date: Jun 2007
Location: Lewiston ID.
Posts: 31
Ya thats the problem I have with this gun. Both the old barrel and this one have lots of throat. From magazine maximum length to touching the lands is 0.100 of an inch. I guess that leaves me a lot of room for trial and error. and yes I found the max pressure for this rifle with re19 210 barnes x its right at 72.5 and 73grs. I'm going to check accubonds (my bullet of choice) next as soon as I find a store in town that has them. What does anyone know what possible velocity I could get with 300gr SMK"s They do have phenomenal BC's. anyone have any suggestions on my bipod usage. I use a Harris
Thanks Wade
Reply With Quote
Unread 03-01-2008, 11:50 AM
Silver Member
Join Date: Dec 2007
Location: central wisconsin
Posts: 233
mite i sugest you use one bullet for barrel brake in,sierra bullets jackets are harder and will burnish you rifleing better than useing 2 or 3 different makes or manufactures bullets,barnes while an awesome bullet smear more than any other bullet ...cause they are softer, your powder choices are fine, your barrel wants to shoot you see that by your groups getting tighter. but while brakeing in a new barrel you should not shoot for groups ,because your shooting and cleaning ,shooting and cleaning, wet bores even dryed with a flannel cloth will throw fliers because as stated above it takes at least two fired rounds to dry and foul the bore..try some sierra 215 grain boatails.....a good copper remover is barnes CR-10.lightly kiss your lands, some barrels take longer to brake in then others because their bores have tool marks and these strip metal from the bullet jacket when it fired down the barrel thus showing up as copper build-up....try some JB-bore cleaner this will not harm or barrel but it will hasten barrel brake in....i shoot a 26 inch ss..#5 douglas xx, 1-10 twist barrel 338win/magnum my self...shooting a 300 grain will be in the low 2400 fps range...harris is very good i use them also......regards
Reply With Quote
Unread 05-29-2008, 11:00 PM
Bronze Member
Join Date: Jun 2007
Location: Lewiston ID.
Posts: 31
Thought I would give everyone an update on how the rifle has been shooting. I've shot about 200 round through her and I think using bore paste really settled her down. I'm probably shooting 3/4 moa groups now. clean up is a breeze now. It was like daylight to dark when it broke in. I shot alot of 200gr hornady spire pts. during this process mainly because that is what I had the most of and they were cheap. The boxes had $6.50 price tag on them that tells you how old they were. I've settled on sierra 215 game king as my load of choice. They shoot real good i could probably get a little more velocity out of them but for now I'm happy. I'm currently checking my drop charts and generaly messing around with shooting long range at rocks and dirt clods,for example tonight I shot a dirt clod that was about 16-20 inches at 940 yds I had shot at it a few days ago so I new the drop pretty close. My reticle was off a little bit then, shot kicked up dirt a little low and right next shot was dead center elevation with a few inches windage off. pretty tickled. Now to fine tune my shooting and practice practice practice I should be ready.
Reply With Quote


Thread Tools
Display Modes

Similar Threads for: 338 win mag accuracy
Thread Thread Starter Forum Replies Last Post
AR-15 Accuracy Help bookworm Rifles, Bullets, Barrels & Ballistics 19 05-16-2011 09:17 AM
223 accuracy ShortMag3 Reloading 5 05-01-2011 09:22 PM
Help 270 WSM Accuracy, dig Rifles, Bullets, Barrels & Ballistics 11 10-02-2010 02:01 PM
M14 / M1A accuracy Skinny Shooter General Discussion 13 10-01-2009 07:28 PM
.260 accuracy Airborne Rifles, Bullets, Barrels & Ballistics 14 04-28-2004 06:58 PM

All times are GMT -5. The time now is 03:58 PM.

Powered by vBulletin ©2000 - 2016, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2015 Long Range Hunting, LLC