My best five shot 300 yard group!

Tuesday morning started out at 71* with high humidity, no wind but a threatening chance of rain------------which it subsequently did. Chronographing stopped after group #4 as steady rain came down. Wet targets with pointy bullets do not make for clean holes.

For anyone new reading this, it .45 cal. Sabot less in a 28” Brux/Rem. 700ML, 14 lb. rifle with 6.5 x 20 Vortex BDC scope shot from a modified tracking lead sled. My cooling rod was used pretty much after each three shots unless there was a break for BS or whatever.

I fouled the barrel with the same load as last week….200 gr. FTX with 10/60 Clays/H-4198 at 3011 fps. Last week it was 3004 fps.

The powder charge for the eight groups was the same as last week---8/58 Clays/H-4198 and .060” veggie wad used under all bullets EXCEPT group #6 where I used no wad. The full formed bullets are actually .451/.452 bullets knurled up to .455 ---Then run thru the FF die for a relatively moderately loose fit. NO .458 bullets used.

This week I tried some new(er) bullets along with my more favored 290 TEZ.



Group #1 was the Parker 300 gr. BE FF . My first shot was out of the subsequent group and I am guessing (don’t know for sure) the barrel might have needed a second fouling shot as the next four produced a .826” group with #1 making it 1.3” @ 2668 fps with a 31 fps ES.



#2 was the Parker 275 BE FF at 2717 fps with a 15 fps ES and a 1.0” group.



#3 The Parker 250 BE FF @ 2645 fps with a 3 fps ES and a .495” group.



#4 is the Barnes 290 TEZ FF @ 2645 fps with a 16 fps ES and a .791” group



#5 again is the 290 TEZ but smooth sized---------at this point the rain started and chronograph was removed for the rest of the shooting. A decent .636” group resulted and actually a tad tighter than the FF group above.

Note: All these groups were shot using the X-hair at 100 yards.



Moving out to 300 yards, based on last weeks information I went to the second BDC (below the x-hairs) and turned the scope power from 20 to 16X. I tried three shots with the 290 TEZ FF with NO wad and got a 2.460 group.



#7 used 290 TEZ FF with the wad which resulted in the smallest FIVE shot ML group I believe I have ever shot (had three shots that small but never five) Here three in a row—2, 3 & 4 = .772” . All five = 1.199” with the best three @ .326”



At this time I made a scope adjustment---------Moved the windage 2 (1/4”) clicks to the left and one click down.



Shooting the same load to verify my adjustments I started group #8. First shot??? Hmmm? It moved over but not down?..............Fire #2—Yup, went down as did the next four shots. Thus the six shot group. I am discounting shot #1 and maybe blaming it on the scope adjustment needing a jolt to properly locate??? Yeah, maybe me but funny the rest of the shots moved down.



So again, the TEZ is working nicely. The 300 BE’s looked that they might also be a contender but I only brought a few to get an idea how they would perform. Next week I will bring more. I also amazes me how closely the 290 TEZ works both smooth and full formed (FF)

Richard



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