Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Reloading

Reloading Techniques For Reloading


Reply

Help with 300 ultra groups....

 
LinkBack Thread Tools Display Modes
  #8  
Old 10-07-2012, 02:01 PM
Gold Member
 
Join Date: Sep 2010
Location: Coldwater michigan
Posts: 507
Re: Help with 300 ultra groups....

I was using h-1000. But I'm not finding it to be accurate. I am going to switch to retumbo. If not ill go to r-25. The best group I found with the h-1000 was around an 1.25 or worse
Reply With Quote
  #9  
Old 10-07-2012, 04:47 PM
Junior Member
 
Join Date: Oct 2011
Posts: 14
Re: Help with 300 ultra groups....

I hAd almost the same results switched to rl25 and cut my groups in half. ahooting a 700 bdl timmney trigger grey bull stock just had it bedded and had a wyatts extended mag installed shot a .508 3 shot group this last week going to start working on seating depth now and see if i can tighten it up more Dan
Reply With Quote
  #10  
Old 10-07-2012, 05:35 PM
Platinum Member
 
Join Date: May 2012
Location: N.D.
Posts: 2,889
Re: Help with 300 ultra groups....

With these heavywieghts you all really ought to try rl50. 98 grains of it in my 300 rum pitches a 225 hornady hpbt to 2870 fps at mild pressure. 102 grains will do an honest 3000 fps in a 26" 300 rum at normal pressure. Both loads are compressed so a long box will do you good, but they will fit with a bit of work in a stock box.
Reply With Quote
  #11  
Old 10-07-2012, 05:41 PM
Silver Member
 
Join Date: Mar 2010
Location: Idaho Falls
Posts: 254
Re: Help with 300 ultra groups....

Quote:
Originally Posted by bigeyedbass View Post
I hAd almost the same results switched to rl25 and cut my groups in half. ahooting a 700 bdl timmney trigger grey bull stock just had it bedded and had a wyatts extended mag installed shot a .508 3 shot group this last week going to start working on seating depth now and see if i can tighten it up more Dan

Re 25 had pretty much th same results as im getting w retumbo..... I thought it shot relly well in my gun but chose the retumbo because of all my reading on here Bout its temp stability.....
Reply With Quote
  #12  
Old 10-07-2012, 05:43 PM
Silver Member
 
Join Date: Mar 2010
Location: Idaho Falls
Posts: 254
Re: Help with 300 ultra groups....

Quote:
Originally Posted by Mikiedem View Post
I am just up the road from you in Rigby, if you want we can get together and maybe I can be some help. Finished my 300 RUM last year and have validated it out to 1532 yards.
That is very generous of ya ill pm ya and maybe I can give ya a call......
Reply With Quote
  #13  
Old 10-07-2012, 05:55 PM
Silver Member
 
Join Date: Mar 2010
Location: Idaho Falls
Posts: 254
Re: Help with 300 ultra groups....

Quote:
Originally Posted by Lefty7mmstw View Post
With these heavywieghts you all really ought to try rl50. 98 grains of it in my 300 rum pitches a 225 hornady hpbt to 2870 fps at mild pressure. 102 grains will do an honest 3000 fps in a 26" 300 rum at normal pressure. Both loads are compressed so a long box will do you good, but they will fit with a bit of work in a stock box.
I was using us869...... 103.5 behind a 210 vld got me 3012 avg with no pressure signs in my gun and room for more powder..... Cant believe how dense that stuff is..... But alas I read about temp stability problems with that powder as well.....and my new barrel didnt like it.......

So I was really hopin to put somethin together w retumbo that would keep me sub moa out to 1000.... Burnt up alot of powder getting to this point. Whoever installed the brake on this barrel did not have it true and that caused me greif for quite a while til I had my gunsmith look at, figure that out, then fix it .

Was just hoping to get somebodys elses opinions on where they would go and what they would do with these groups..

Thanks again for all the replys......
Reply With Quote
  #14  
Old 10-07-2012, 06:40 PM
Silver Member
 
Join Date: Nov 2010
Location: Rigby, Idaho
Posts: 188
Re: Help with 300 ultra groups....

When I develop a long range load I will start at a distance where I plan most of shots will take place so typically my ladder will start at 500 yards with a blank piece of paper appx. 3 ft long with bull in the middle ( 1k target at army surplus works great). After deciding on my start and appx max load I will load 1 round in .3-.5 increments (depending on what I'm shooting) to my max. I dope my scope so I will hit low on the paper while holding on bull so as the charge increases the pattern will climb. Document after every shot on the target and inspect brass for excessive pressure. After all shots are fired the target will show a node with the least amount of vertical variance. Once the node is noted, it will be between .9 and 1.5 grain spread (depending on what increment I loaded) lets say the node is 92.3-93.2. Now I know that even if my powder thrower throws a little light or heavy my point of impact is going to stay relatively the same. Now I will load 3 shot loads 92.2, 92.4, 92.6, 92.8, 93.0, 93.2 and go shoot at 700 round robin style documenting each shot and find the load with the least amount of vertical variance. This will be my new best friend for this rifle. I don't worry to much about horizontal because as you know by the time you start and finish the wind here will change alot. This is what has worked for me and several rifles, maybe it will help you in your quest to 1k, maybe you already know. Figured if I didn't share then it may be new info left not shared.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Help with 300 ultra groups....
Thread Thread Starter Forum Replies Last Post
free recoil equals good groups. bad groups non free foreign The Basics, Starting Out 5 08-19-2012 07:11 PM
Tac 15 Groups Kytopgun PSE TAC 15/15i Crossbow Hunting Forum 12 06-11-2011 03:21 PM
What do these groups mean??? buckbrush Long Range Hunting & Shooting 20 03-27-2010 04:30 PM
Groups edge General Discussion 22 12-24-2006 03:57 PM
First groups with 6.5-284 LSR Rifles, Bullets, Barrels and Ballistics 32 06-02-2005 03:07 AM

Current Poll
Do you wear hearing protection while hunting?

All times are GMT -5. The time now is 08:29 PM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC