which is more accurate ? .50cal or .338

rsp1761 said:
Does this say you have more than 1 50 BMG rifle that regularly produce 1/4 MOA accuracy? What distance is this evaluated at?

Also, I believe the root of the OP's question was really weather one chambering could be more accurate than another. Certainly additional parameters are required to base this on such as range and as you correctly note the 50 has more "reach" which would likely make it more accurate at extreme range IMO

Mysticplayer noted that currently available bullets play a huge role in his opinion on the matter and I would concur along with the quality of brass available in 338 over 50 (not to mention factory loads if they are being used to evaluate).

I also saw mention of shooting a 20" plate at 3125 yards with a 338 (I assume Lapua??) The only way I could do that would be with some major horseshoe power and that would certainly not be on a consistent basis.
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Currently I have 3, 50 cal rifles that fit into the 1/4 moa shooting class and 2 that do not.
I agree that with the 50s brass quality CAN be an issue, having some match brass for the 50s has certainly solved this problem for me.
As mentioned 1/4 moa is 1/4 moa as moa is a constant.
I consider 1000 yards to be fairly close range for a 50 , and in all honesty only shoot " paper targets" out to just beyond the 1000 yard mark after that distance I tend to shoot at reactive objects like steel gongs, rocks and barrels, finding the instant gratification more pleaseing than holes in paper.

I agree 3125 yards with a 338 is a stretch, I know my 338 LAI will go 2400 yards with no problem, having done so both here and at Summerland last year.
 
Here is a link to the FCSA world records for the BMG. They don't list a distance but assume it is 1000yds. Single group was just over 1/4 MOA. 6 target aggs were just over 1/2 MOA. These shooters definitely have the opportunity and resources to make tiny groups happen.

http://www.fcsa.org/wwwroot/visitors/worldrecords.php


By comparison, some world records with smaller cals.

http://accurateshooter.wordpress.com/2007/07/09/sarver-shoots-1403-group-at-1000-yards/

http://accurateshooter.wordpress.co...00-yd-nationals-bower-breaks-hg-group-record/

http://www.6mmbr.com/schatz1000.html

http://www.6mmbr.com/page/page/1309618.htm

http://www.6mmbr.com/gunweek071.html

The current 600yds records shot with a 6 Dasher is under 1".

Alot is quite old so there may be smaller current records. Then you can search through the match results to see what shooters have just done (williamsport has a great search engine for this on their site). I feel that is a better representation of the accuracy potential of a cal/cartridge/bullet. One hero/world setting group is nice but the match results will give you better trends on what the 'average' shooter can extract.

Not saying any cal/cartridge can't shoot well. I have built enough rifle's that shot well even though they shouldn't to understand what is possible. But the guys and girls in the US obsessed with driving them into one hole have the resources to make it happen and they have a hard time making the 50's keep up with the smaller cals....on Average

YMMV.

Jerry
 
reddogone69 said:
don't forget the rest "and then I fired the third shot in the group....."

I think this ranks right up there with your Scout Sniper tales of grandeur in Vietnam when you were what, 10 yrs old?
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Oh, newbs. Reminds me of the time a newb, called Strangeday's black rifle collection, airsoft. This place would be boring if the clueless didn't chirp up when they do.
 
Here is a link to the FCSA world records for the BMG. They don't list a distance but assume it is 1000yds. Single group was just over 1/4 MOA. 6 target aggs were just over 1/2 MOA. These shooters definitely have the opportunity and resources to make tiny groups happen.
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They list rules at the top of there page for 600yrd matches not 1000 so i would be inclined to think they are 600yrd matches...
 
Hotwheels81 said:
They list rules at the top of there page for 600yrd matches not 1000 so i would be inclined to think they are 600yrd matches...
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There is a link there for rules specific to 600 yard matches. I am reasonably certain these records are from 1000 yards.
 
FCSA shoot both 600 and 1000 yd. Separate rule books. The records listed are the 1000 yd records.

Interesting that the agg records are around .6 moa, I would hazard a guess that most matches see groups in the 1-2 moa range as typical 5 shot groups. Also note that they measure groups to the nearest 1/16 of an inch in competition, unless a record is on the line, in which case they use a more accurate means of measuring.
 
curtmg said:
if the clueless didn't chirp up when they do.
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You're absolutely correct. I am cluless. Especially on how one measures minute of rock, and minute of barrel. I would settle for the "instant gratification" of a picture of that..... at the stated ranges well beyond 1,000 yards.
 
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