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5+ MOA from Monarch/PPU ammunition (Read 761 times)
ormandj
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5+ MOA from Monarch/PPU ammunition
11/01/09 at 22:24:18
 
Has anybody else shot the 150gr Monarch/Privi (PPU) ammunition from their RFB? I was seeing 5+ MOA groups from it off a rest at 100yds, with mainly horizontal spread, but a few MOA vertical as well. The WWB 147gr grouped much better, closer to 2 MOA. I've shot this ammunition in its' .223 variety from my AR and had 1.5 MOA groupings on average - perhaps it's just an issue with the .308 variant, or this ammunition with this particular rifle?
 
I'm going to go shoot some 165 Nosler Accubond next trip (I've heard the RFB is inaccurate with ammunition at the 150gr bullet weight) and see how that fairs, I'm just curious if anybody else has tried the Monarch brass cased ammunition and had the same experience (or not).
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Re: 5+ MOA from Monarch/PPU ammunition
Reply #1 - 11/02/09 at 01:25:35
 
I recently took mine out to test with several different rounds.  I had the best results with 147gr Winchester, and some 168gr loads that I was able to keep at 2moa or less.  I also shot some 175gr loads that really opened up to about 5moa.
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marrandy
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Re: 5+ MOA from Monarch/PPU ammunition
Reply #2 - 11/02/09 at 08:52:18
 
What does it shoot with military 7.62x51 ammo ?
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ormandj
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Re: 5+ MOA from Monarch/PPU ammunition
Reply #3 - 11/02/09 at 08:55:10
 
Quote from marrandy on 11/02/09 at 08:52:18:
What does it shoot with military 7.62x51 ammo ?

 
I don't have any surplus, but I've heard WWB is loaded fairly close to 7.62x51 NATO (M80) specifications. It shot roughly 2MOA.
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stymie
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Re: 5+ MOA from Monarch/PPU ammunition
Reply #4 - 11/02/09 at 11:23:49
 
Quote from marrandy on 11/02/09 at 08:52:18:
What does it shoot with military 7.62x51 ammo ?

 
I'm consistently getting under 2moa with Winchester Q3130 M80 in my RFB. Smiley
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Burt_Gummer
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Re: 5+ MOA from Monarch/PPU ammunition
Reply #5 - 11/02/09 at 12:00:23
 
ormandj, I may be way out of left field with this, but have you compared groups before and after installing the PWS FSC30?  The reason I bring this up is that sometimes swapping muzzle devices may change the harmonics of the barrel (think: Browning BOSS).  For example, I know that many swear that adding a Smith Vortex FH will improve groups.  Just thinking out loud here.
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ormandj
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Re: 5+ MOA from Monarch/PPU ammunition
Reply #6 - 11/02/09 at 12:05:50
 
Quote from Burt_Gummer on 11/02/09 at 12:00:23:
ormandj, I may be way out of left field with this, but have you compared groups before and after installing the PWS FSC30?  The reason I bring this up is that sometimes swapping muzzle devices may change the harmonics of the barrel (think: Browning BOSS).  For an example, I know that many swear that adding a Smith Vortex FH will improve groups.  Just thinking out loud here.

 
Good point, and no I have not. With the barrel effectively being the spine of the rifle, I could see it having a large impact. I hadn't shot any of this ammunition prior to the swap. I'll grab some WWB next time I see it and shoot that with the brake, I had shot it prior to installation so it should give me some idea of the 'change'. Depending on the results of that, I'll move forward with the heavier ammunition, and determine how I want to proceed based on the accuracy of that. Monarch is the least expensive ammunition you can buy (it's rebranded PPU, and low end stuff) so 5+ MOA from these cartridges would not be surprising at all. I was just curious if anybody else with an RFB had shot it, before spending time trying to figure out what has gone on. Smiley
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Re: 5+ MOA from Monarch/PPU ammunition
Reply #7 - 11/02/09 at 13:59:34
 
Quote from marrandy on 11/02/09 at 08:52:18:
What does it shoot with military 7.62x51 ammo ?

 
 
150 or there abouts feed the M-60. 168 use to be the RIFLE mainstay, the 175 has come on strong in the past few years.
 
Federal Gold Medal and Priv Match in the 168 are the ONLY rounds I have or will use; I have always gotten under an inch and it is consistent to 500yrds. I will eventually get out to a grand after deer season.
 
You are grasping at straw to expect match accuracy out of surplus or hunting ammo,reguardless of the rifle used!!!
 
Bert has a valid point with the validation of OEM configuration compared to your accessories.  I have used a Holland MB with very good results But, I really perfer using a can. It keeps the blast from sending crap out in front that WILL effect flight. (dirty air)  
 
Shooter's Depot has a carbon fiber suppressor that weighs 1/2 lb and wicks heat away like nobody's business. I am very anxious for this transfer to complete. My stainless can makes the RFB a pig when not shouldered and it cooked the Duracoat to a nice shiney black!!! That can is destined for the AR-10, The carbon fiber seems the best for the RFB.
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marrandy
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Re: 5+ MOA from Monarch/PPU ammunition
Reply #8 - 11/02/09 at 16:08:54
 
Quote from judcargile on 11/02/09 at 13:59:34:
Quote from marrandy on 11/02/09 at 08:52:18:
What does it shoot with military 7.62x51 ammo ?


You are grasping at straw to expect match accuracy out of surplus or hunting ammo,reguardless of the rifle used!!!


 
 
I never mentioned match accuracy and I am not grasping at straws.
 
std US 7.62x51 is a known quantity with known characteristics including SD/ES.
 
How it performs varies from weapon type to weapon type and is a characteristic of each weapons parts quality and assemblies.  
 
If the RFB is better or worse than other 7.62x51 rifles, then it makes a difference to my possible purchase.
 
YMMV
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Re: 5+ MOA from Monarch/PPU ammunition
Reply #9 - 11/02/09 at 17:36:55
 
I'd generally agree that it's good to use a common ammo to make rough comparisons between rifles, for reliable operation and accuracy, but I'd also caution against thinking that the ammo is the same so the accuracy differences are due only to the rifles. Some rifles like some ammo better than others.
 
If you know you'll only shoot one ammo, such as surplus military ball ammo, and that's all that matters to you, then making that comparison is fair and worthwhile. I'm interested in all accuracy reports with all types of ammo, but what I'd really like to see is the best accuracy that an experienced reloader is able to achieve. I think that's a much better indication of the accuracy potential of any rifle, and it's also more appropriate to the real world accuracy I can expect because I will be reloading specifically for the RFB.
 
So far, I haven't heard any super accurate RFB reports, but I also haven't heard from anybody who has gotten serious about reloading and bench rest shooting, either.
 
I'm also very interested in the accuracy of the Target RFB. It won't do much good to shoot 1200 yards if the best accuracy is 2 MOA, unless all of your targets are larger than 24" wide and tall.  A Target RFB with a demonstrated accuracy of over 1 MOA is of much less use to me.  A 2 MOA Carbine RFB is still pretty cool in my opinion and has a lot of use. There is very little shooting over 200 yards that I'd ever be doing in any practical application around here. To me, the Carbine RFB is more of a hard hitting, high penetration, urban combat weapon. If you needed to pop around a corner and corner and quickly fire ten reasonably accurate shots 75 yards away through a concrete block wall, that's the time to have a Carbine RFB. I certainly don't have that need now, and I don't anticipate it, but I was a Boy Scout. Be Prepared is still my motto.
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ormandj
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Re: 5+ MOA from Monarch/PPU ammunition
Reply #10 - 11/03/09 at 02:14:20
 
Quote from Liberty4Ever on 11/02/09 at 17:36:55:
I'd generally agree that it's good to use a common ammo to make rough comparisons between rifles, for reliable operation and accuracy, but I'd also caution against thinking that the ammo is the same so the accuracy differences are due only to the rifles. Some rifles like some ammo better than others.

If you know you'll only shoot one ammo, such as surplus military ball ammo, and that's all that matters to you, then making that comparison is fair and worthwhile. I'm interested in all accuracy reports with all types of ammo, but what I'd really like to see is the best accuracy that an experienced reloader is able to achieve. I think that's a much better indication of the accuracy potential of any rifle, and it's also more appropriate to the real world accuracy I can expect because I will be reloading specifically for the RFB.

So far, I haven't heard any super accurate RFB reports, but I also haven't heard from anybody who has gotten serious about reloading and bench rest shooting, either.

I'm also very interested in the accuracy of the Target RFB. It won't do much good to shoot 1200 yards if the best accuracy is 2 MOA, unless all of your targets are larger than 24" wide and tall.  A Target RFB with a demonstrated accuracy of over 1 MOA is of much less use to me.  A 2 MOA Carbine RFB is still pretty cool in my opinion and has a lot of use. There is very little shooting over 200 yards that I'd ever be doing in any practical application around here. To me, the Carbine RFB is more of a hard hitting, high penetration, urban combat weapon. If you needed to pop around a corner and corner and quickly fire ten reasonably accurate shots 75 yards away through a concrete block wall, that's the time to have a Carbine RFB. I certainly don't have that need now, and I don't anticipate it, but I was a Boy Scout. Be Prepared is still my motto.

 
Have no fear, I am a reloader. Smiley I'm experimenting with factory ammunition at this point to determine where the 'sweet spot' is for bullet weight/design, so that I don't invest $$$ in components that don't have a chance of working out. Once I shoot these Nosler 165 gr Accubonds, I'll have a good idea - I've put 168gr, 160gr, 155gr, 150gr, and 147gr ammunition through the RFB. So far the 147gr and 168 gr has shot best, which is good to know in the times you may need to shoot commercial ammunition. I'll be working up loads soon once I've tried the 165, to see what I can bring out from the rifle. I'm currently looking at 165 Accubonds with ~45gr of Varget as a good all-purpose cartridge. At the current prices I can obtain components at, it works out to about 50c a round for ammunition loaded to my specifications.
 
In my 30'06 (Remington 700 based), I went from 1.5MOA to .3MOA through reloading, for approximately 1/4th the price of match-grade ammunition. Many people make this mistake of comparing reloads to the least expensive ammunition they can buy, and then making decisions based on this. Bad idea. Smiley I expect to see the same accuracy improvements from reloading for the RFB - maybe not as dramatic as I'm limited by COAL due to the magazine, and the barrel not being floated/tilting action won't allow for the same accuracy, but I'm certain I can pull 1MOA or better groups from the proper bullet/load. This is more than suitable for my purposes.
 
The intent of this post was to find somebody who had shot the same ammunition, and determine if they had the same results, nothing more. The topic has drifted considerably since my initial post.
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Re: 5+ MOA from Monarch/PPU ammunition
Reply #11 - 11/03/09 at 22:24:28
 
Huh, I was hoping for better accuracy than I'm hearing about.  1MOA seems to be the standard these days.  2MOA is probably all alright for basic hunting and certainly more than good enough for self defense.  But a .308 should be able to hit out to 600 yards without to much difficulty.
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Re: 5+ MOA from Monarch/PPU ammunition
Reply #12 - 11/04/09 at 13:31:27
 
I say again, George has put too much into this master piece to have the water mudddied up by people who are PRETTY good shots.
 
1) Are you on a bipod?  it is alot more solid than any "rest"
2)Do you realize trigger squeeze by performing dime/washer drills?  (google it) or join the infantry!!!
3)Do you begin squeeze during the natural pause after exhale?  You can not hurry the shot, running out of breathe? start OVER!!!
4)Is your stock/cheek weld consistent?  Hard to do on factory RFB,there is NO reference....get/make a cheek piece!!!
5) When you THINK you are all in your "zone look away from your target for about two seconds and then look back at your sight picture....did it move ANY?? You can NOT tense up this leg or that arm to align the shot,your entire body must be IN PLACE and RELAXED
6)How do you know when your rifle is canted ANY??? (I can onlytell with a bubble level)
7)You MUST have RIFLE QUALITY ammo that will stabilize with the rifles' twist rate, 168gr is my advice
8)Skimp on optics at your own peril....but top shelf glass does not substitute proper technique,would you agree?
Did I leave anything out?
 
I have a sloppy post on this site but, ALL the info you need to get out the gate is there!  I get sub MOA out of my RFB and use ALL the advice that I am giving ya'll now. It took a little basement engineering but, I have been able to destroy multiple silouette sized targets at distances out to 500yrds in time frame that would make you think that I am a perpetual liar!!! Nothing wrong with the rifles' accuracy, it is the loose nut behind the rifle. Give me an Infantry soldier or even a Marine and I will show you a sub MOA RFB!!!
 
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stymie
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Re: 5+ MOA from Monarch/PPU ammunition
Reply #13 - 11/04/09 at 18:49:13
 
http://www.scribd.com/doc/8386280/Rifle-Marksmanship
 
While this document is geared to the use of the M16, the fundamentals are basically the same when handling the RFB bullpup. Smiley
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ormandj
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Re: 5+ MOA from Monarch/PPU ammunition
Reply #14 - 11/05/09 at 03:53:07
 
Quote from judcargile on 11/04/09 at 13:31:27:
I say again, George has put too much into this master piece to have the water mudddied up by people who are PRETTY good shots.

1) Are you on a bipod?  it is alot more solid than any "rest"
2)Do you realize trigger squeeze by performing dime/washer drills?  (google it) or join the infantry!!!
3)Do you begin squeeze during the natural pause after exhale?  You can not hurry the shot, running out of breathe? start OVER!!!
4)Is your stock/cheek weld consistent?  Hard to do on factory RFB,there is NO reference....get/make a cheek piece!!!
5) When you THINK you are all in your "zone look away from your target for about two seconds and then look back at your sight picture....did it move ANY?? You can NOT tense up this leg or that arm to align the shot,your entire body must be IN PLACE and RELAXED
6)How do you know when your rifle is canted ANY??? (I can onlytell with a bubble level)
7)You MUST have RIFLE QUALITY ammo that will stabilize with the rifles' twist rate, 168gr is my advice
8)Skimp on optics at your own peril....but top shelf glass does not substitute proper technique,would you agree?
Did I leave anything out?

I have a sloppy post on this site but, ALL the info you need to get out the gate is there!  I get sub MOA out of my RFB and use ALL the advice that I am giving ya'll now. It took a little basement engineering but, I have been able to destroy multiple silouette sized targets at distances out to 500yrds in time frame that would make you think that I am a perpetual liar!!! Nothing wrong with the rifles' accuracy, it is the loose nut behind the rifle. Give me an Infantry soldier or even a Marine and I will show you a sub MOA RFB!!!


 
See my response on the other post regarding this. RFBs are not sub MOA rifles, and I'm not the person you seem to describe this entire forum as being. You're talking about heart beat interfering with shots (it does) and talking about cheek weld in the same paragraph. Really? Not all of us are in rifle 101. There are some good shots on this forum, I'm sure - probably people that can out shoot me any day of the week (possibly yourself) - but the generalizations get old. Did you even read the initial post? We're FAR off topic here.
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