Go Back   The Hunter's Life > GUNS & AMMO > RELOADING
Thread Tools Display Modes
Prev Previous Post   Next Post Next

Range Report - .338 WM - Ruger M77, Sauer 90
Old 02-25-2016, 06:45 PM
gitano's Avatar
gitano gitano is offline
Join Date: Oct 2004
Location: Wasilla, Alaska
Age: 69
Posts: 19,375
gitano is on a distinguished road
Default Range Report - .338 WM - Ruger M77, Sauer 90

An interesting 'day' at the range.

The range opens at 10 AM, and I kinda wanted to be there as close to that as I could reasonably get. I wasn't going to take my dog, so I took him for a walk first. Upon returning home I was really getting a 'negative vibe'. The wind was not 'good'. I decided to 'press on'. Got all loaded up and headed out and was at the end of my street and got another 'negative vibe' about going. I decided to 'press on'.

Got to the range at 1040. The wind was 'howling' for a range session. Fairly constant at least at 20 mph and almost 90 degrees from right to left. Occasional gusts to 25 or so, but brief 'breaks' too. I pressed on.

I had only brought two rifles: The Ruger Model 77 chambered in .338 Win Mag, and the new Sauer 90 also chambered in .338 WM. When I measured the chamber of the Sauer, it was essentially identical to the Ruger so since I had 16 rounds of my standard load for the Ruger in hand, I decided to just go with those and see how they worked in the Sauer. These were 225 Hornadys ahead of 66.0 grains of H4831, seated to the center of the cannelure. These loads shot very straight in my Ruger.

I'll skip all the details of the hassle getting a big target stand to stand up in 20-25 mph wind and simply say "It took a while". Once I had the target set up (at 35 yd) and the MagnetoSpeed chronograph attached, I fired a round from the Ruger.

Ok - That hasn't changed. So I set up the Sauer, and bore-sighted it.

I could live with that. Probably going to be a little high at 100, but no need to waste ammo 'fine tuning' at 35.

I moved the target out to 100, and let fly:

Let me number the shots for you: The middle hole in the vertical group of three on the right is shot #1. The middle hole is shot #2. The left-most hole is shot #3. Back to the 3 vertical shots on the right, the lower one is shot #4, and the upper one is shot #5.

The average muzzle velocity of all of the shots was 2452 f/s with a standard deviation (SD) of 15.3 f/s. That SD is nothing to write home about, but it's not bad either. The spread was 2428 to 2466. (2466, 2453, 2428, 2435, 2452, 2465, 2465.)

The 5-shot group size isn't exactly impressive with a max spread of 1.74", but the vertical spread is only 0.78". The horizontal 1.65". Since the trigger on the Sauer is excellent, so that can't be blamed. With a 20mph wind coming at 90 degrees to the line of fire, that bullet at that MV will be blown 2.8 inches at 100 yd. While I was trying to dope the wind and only shoot when there was a 'lull', I'm blaming most of the horizontal spread on the wind.

That said, I am happy as a pig in a puddle with the performance of the Sauer. I don't see any reason to adjust the recipe from the one for the Ruger. Frankly, I'm very surprised that the Sauer 'digested' the load that works so well in the Ruger.

I have ordered some 225 Accubonds, and they should be arriving today. If so, I'll make up some loads for them, and the next time at the range I'll test those.

Only shot 7 rounds, but the results didn't demand any more. I will fine-tune the elevation and windage on a day when the wind isn't so bad for shooting. If I up the MV in the Accubonds, I'll probably use about 2" high at 100. We'll see how they shoot. These Hornadys are flat-based. The Accubonds are not.

Then you will know the truth, and the truth will set you free. John 8:32

"We make men without chests and expect of them virtue and enterprise. We laugh at honor and are shocked to find traitors in our midst. We castrate and bid the geldings be fruitful." ~ C.S. Lewis.

Do not confuse technical skill for wisdom and do not confuse strength for skill. Paul Skvorc

Last edited by gitano; 03-01-2016 at 06:31 PM..
Reply With Quote

.338 caliber, .338 wm, broken case removal, head separation, obt, optimal barrel timing, quickload, range report, rear lugs, ruger model 77, sauer 90

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
ruger P94DC range report! davidlt89 FIREARMS & OPTICS 5 04-30-2012 05:36 PM
Range Report: Ruger No1 450/400 3" & Hornady factory ammo kombi1976 RELOADING 19 03-13-2011 08:09 PM
375 H&H range report sakorick FIREARMS & OPTICS 5 09-07-2009 01:35 PM
Range report .243 BSA Brithunter RELOADING 0 10-14-2007 05:19 PM
Field report for .204 ruger with 32 grain v-max's Gmoney VARMINT/PREDATOR 10 05-04-2005 12:27 AM

All times are GMT -5. The time now is 08:00 AM.

vBulletin skin developed by: eXtremepixels
Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.