Thanks for your post.
I have shot teh 6mm (.243 cal.) since 1975. I traded in teh 22-250 once seeing teh wind blown bullets shoot more than a foot off in a moderate gale.
I loaded teh 6 with a full dose of 4350 and the 87 gr. spire point. ~~ i went through many rolls of "dental floss" on hundreds of coyotes~~. Coyotes shot at 20 yds. received same damage as those shot at 400. I often told myself to shoot them in them high in the belly......just so as to miss the shoulder bone on the exit side. Not pretty sometimes, as I remember one 'cyote stand there and gobble up 6 feet of his intestines before streeking off. It was getting past dark, so I came back next morning and fouind him very dead 80 yards from impact. This happened several times over the many winters.
I did go to using H-380 and magnum primer with a couple grains less than max. The 87 spire pt. shot just as true, if not better than, as with the max load of 4350. Bullet exits where noticable less, but hey, I am now an 'expert hole sewer'!
I have just this year loaded teh 65 gr V MAX and took one coon shot running away, hit in the rear hind quarters a little low. The bullet fragmaented just under the hide, traveling forward leaving several fragmenting holes between the fron legs. I needed the 22 pistol to head shoot it to finish it off. The ol' 87 spire point would have done the coon in with no holes at all and dropped him dead.
Another mangy coyote came in to 17 yds. and the 65 gr. poked through him ( no hair at all) right through the heart/chest, leaving a 2 inich exit hole. I have only been out since Janurary, so have little experience with the 65 gr or any other "new" bullet elswise.
I have shot some factory 80 gr. spire poiints that also leave a triangle hole for needle and thread. Factory loads just do not group in the 6mmRuger #1.
I was wondering if the 87 VMAX would perform better?? i dunno. I shot targets with teh 70 Gr Nosler Bilistic Tip with several receipies of VArGet but could not get a decent grouping at all. The 65 VMAX shot extremely well with near MAX velocities. I came down 3/4's grain just to save on pressure and wear on brass.
I AM AS ANXIOUS AS YOU TO LEARN OF A modern 243 Hide Load to shoot flat to 250 yards and group tightly.
In the old days I also caarried a .223 in a Rem 788. Yes it was a tack driver!! I shot teh 50 gr. Super Explosive Spire points...but quickly found the 55 gr Super Xplosive to do teh job 'proper'. Many repeat shots occurred with the little 50 grainer, or else the coyote just got up and ran off after being down several seconds to dissapear.
Lets hear it for a HIDE LOAD for 243 coyote getters out there.