Picky amax's

[mcharger440]

So I've been shooting 140 amax's in my 260 rem ar platform 24" benchmark barrel timney 3.5lb trigger, anyways, I was grouping about 5"@500yds with 40.4 grains of aa4350 wlr primers and col of 2.785 @2650 fps I've been shooting that load a while and it was the only consistent load I had found and just a fan of cratering on the primers. This weekend I decided to heat it up a bit with the same col I loaded 10@ 40.5, [email protected], 10@ 40.7, [email protected], [email protected], and 10@ 41.0gr all shot about the same until I hit the 41.0 gr mark all of a sudden I went to 2.25" group with no major pressure signs, so I loaded 10 more and got a best of 2" group @ 500yds... Have any of you had a similar experience with a bullet

 

[screech]

If I understand what your saying its shooting better the hotter you get it. If that's they case then yes it makes sense. Most of my 6.5x284s I shoot shoot well with around 46grs of h4831 and then seem to shoot well in that 52grs area. That's off memory of a year or two ago so no one use that info unless you double check me first. What I'm saying is generally a gun shoots in nodes and you might have hit a higher node that may be more consistent. I hope I answered your question. By the way those 140 amaxs are hard to beat for a deer bullet and I would use them on elk at long range if I was using my 6.5x284s for elk but most of the time I run a stw or 300rum on elk also with amaxs

 

[mcharger440]

Yes that helps I was just blown away at how much the groups shrank In a .1 increment

 

[screech]

Oh ya most of the time .1 grains won't make any difference or not enough to be notable. Did you switch powder lots like did you open a new can of powder?

 

[mcharger440]

Same jar of powder same lot of bullets same brass

 

[6mm06guy]

I have had similar results with my 6.5x55 sm, and 140 Ajax. Same on my 6-06 both guns like hot rounds with the amaxs. I don't know about .1 gr changing 2 1/2" but .5 in my swede will change from 2.5 at 500 to 10"