Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Rifles, Bullets, Barrels and Ballistics


Reply

225 and 250s arent grouping with H1000 or Retumbo

 
LinkBack Thread Tools Display Modes
  #1  
Old 07-07-2012, 02:07 PM
Silver Member
 
Join Date: Aug 2008
Location: Forks, Wa
Posts: 138
225 and 250s arent grouping with H1000 or Retumbo

Hey guys I have been sending alot of rounds downrange from my Defensive edge 338 RUM...I have a couple really good loads with RL22 and RL25..shooting the 225 gr accubond.1/2moa..Decided to change to H1000 and Retumbo for temp stability..wow best I can come up with is 1 inch groups at 100...tried increments in .5 grains...and several different seating depths... strange grouping..2 touching and 1 an inch away.atleast 10 different loads..all loads have the same pattern...tried the 250s...same thing...went back to rl 22 and bughole groups..same with Rl 25....I have a bunch of this powder and want to make it shoot...getting awesome ES of 8 and under and SD of 6 and under...very strange...I then loaded an accuracy load that Shawn Carlock sent with the gun..86 gr of H1000 300 smk...it shoot a bughole....loaded some 300 accubonds, they to were in one hole.....cant figure out why these powders wont shoot the lighter bullets out of this gun...I usually shoot the 225s as i am primarilyHunt highcountrty mule deer...any thoughts about why this is happening...best load has been 100 gr of h1000...fed 215 primer seated at 3.70 Oal...played and played with too many getting a little expensive...Shooting 96 gr of rl 25 consistantly .3 to .5 moa....Am I missing something, thanks guys
Reply With Quote
  #2  
Old 07-07-2012, 04:19 PM
Silver Member
 
Join Date: Feb 2008
Location: Franklin,id
Posts: 241
Re: 225 and 250s arent grouping with H1000 or Retumbo

My 338RUM shoots bug holes with 100grs of H1000 behind the 225accubond and federal 215M, only difference is my coal is 3.76. I think H1000 and retumbo are a little on the slow side though, for a 225gr bullet. I'd try H4831 and see what it does, if you want to stay with a temp stable powder.
Reply With Quote
  #3  
Old 07-07-2012, 04:48 PM
Platinum Member
 
Join Date: Jan 2004
Location: Blackfoot, Idaho
Posts: 8,093
Re: 225 and 250s arent grouping with H1000 or Retumbo

Regardless of how much of what powder one has on hand the goal is to get the best performance which in my mind means a combination of energy and accuracy.

Speed isn't all that important.

If she shoots bug holes w/300 gr offerings that's about as good as it gets.

My go to load in the RUM is 300 Hybrid well into the rifling ahead of 101.5 gr 50 BMG. Weird but effective. MV is right at 2735 with enviable ES & SD.
__________________
I may be the slowest guy on the mountain . . . . but . . . . I'm on the mountain!
Reply With Quote
  #4  
Old 07-07-2012, 08:52 PM
Bronze Member
 
Join Date: Jan 2009
Location: Ketchikan,AK
Posts: 51
Re: 225 and 250s arent grouping with H1000 or Retumbo

This effect has plagued me and my 6.5 STW. WC 872 and H50BMG will fling shots and break my hunting confidence. So I use fast (realitively) powders, Retumbo, RL25, and 7828 and get little triangle shaped groups. Hard on brass but trust worthy. Actually Retumbo seems to be in what appears to a gaping hole between the burn speeds of the 7828,h1000, RL25's and then the 872, 869, and h50bmg. Retumbo also gives good groups without wrecking brass seems to work well with my shortish 26" barrel. I believe barrel length is the reason one has trouble sometimes with a powder that by all accounts should be ideal.

I hope to learn more from this thread.


Tim
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: 225 and 250s arent grouping with H1000 or Retumbo
Thread Thread Starter Forum Replies Last Post
Retumbo VS H1000 Ultramag45 Reloading 3 05-28-2012 12:26 AM
h1000 vs retumbo midwesthunter Reloading 7 02-10-2012 10:54 PM
Retumbo and H1000 Driller54 Reloading 6 01-07-2012 12:39 PM
300 RUM: Retumbo or H1000? bobh918 Rifles, Bullets, Barrels and Ballistics 9 12-08-2010 01:29 PM
H1000 Or Retumbo SHRTSHTR Reloading 15 10-31-2009 09:47 PM

Current Poll
Do you archery hunt for elk?
YES - 32.37%
78 Votes
NO - 50.62%
122 Votes
Not yet, but I plan to. - 17.01%
41 Votes
Total Votes: 241
You may not vote on this poll.

All times are GMT -5. The time now is 05:57 PM.


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