[FreeRangeYODA]

you read all kindsa yang around about this so i'll straighten it out for all our members .

as strange as it seems there is very little difference in trajectory (too 400M) between this heavyweight bullet and nominal loads . the big difference is about POI shift caused by a change in port pressure timing , forceing the barrel lower just before bullet exit . this has nothing to do with external ballistics . the recoil even felt more pushy .

instead of siteing in at 100M , on -3- , too +10" POI above POA , you would site in too +12.5" to acheive the same 300M zero . the 154grs 300M MRT = about 15.5 " instead of the normal +12.5" or so . there is only a few more inches of drop at 400M .

TULA CARTRIDGE WORKS polymer cases
WOLF___154gr SPBT____1.030"__ .309+"__________ semi-pointed lead meplat . 5s tangent radius ogive . no colored sealer . heavy casemouth crimp . BT= 0.180" long x 0.258" dia. no heel crimp . flat and flush exposed lead core .
_________________________________________ 0.205 G5 @2100fps MV

CHRONO DATA
10shots measured @15ft. , 65F. overcast lt.rain , 16.25"barrel . new polymer coated-caseings ammo .

AVE. (of 9) 2094 fps
HI , 2112
LO , 2061
ES , 51 fps
SD , ?
2083* , 2108* , 1829*(.error), 2098* , 2099 , 2112 , 2100 , 2104 , 2061 , 2081

CORRECTED AVE. MV at range conditions : 2107fps
measured @15ft. :2094fps
hit the jugs @50ft. :2064fps
@50M : 1973fps
@100M : 1841fps


RECOVERD FROM WATER JUGS @50FT.

R.Frontal Dia. = .450" to .490" (the smallest/largest dia. on all 3 bullets)
R.LOA of cores = .670" , .654" , .640"
unfired bullet LOA = 1.030" , core goes from tip to base .
all separated from jacket which broke off some ogive petals while the rest just curled back a little at the tip .

BULLET REPLACEMENT ?

if you could come up with a .310" bullet like the .308" 155gr match palma with its high B.C. (compared to this blunt wolf softpoint that is) @2000/2100fps you'ld be well on to the most efficient 762x39 load possible with a trajectory nearly the same as standard M43 but retaining 500ft.lbs. energy out to about 520M @standard conditions .

current M43 or Wolf FMJBT retain 500ft.lbs. out to about 400M , the HPBTs too about 375M , M67 to about 325M and the stubbie US made bullets to only 300M .

since carbines can use every fps/ft.lb. available , thats a lot of improvement for the little 762x39 case !!!

 

[5thShock]

Good data, thanks. Some have been interested in this round as a hog buster. Based on your expansion tests how say you?
"instead of siteing in at 100M , on -3- , too +10" POI above POA , you would site in too +12.5" " -- seems like they finally made the round my Romanian rear sight ramp is milled for. But, by now, I like
the hold low sight picture at 300 meters, you can see more of 'em.

 

[FreeRangeYODA]

this is the same basic expansion i got in waterjugs , except this round recoverd from a hog has the expanded flat point bent over one side and the core seems to be a little longer than what i recoverd . otherwise , the recoverd/separated jacket is identical to what i saw .


the SKSs 20.5" barrel gives about 2175fps MV with this ammo . i dont think he gives the approx. range of the shot .

http://www.mikeswillowlake.com/hogs_2003.htm

this is "OK" performance out of a box i guess but , from my testing , if I was gonna shoot hogs with an SKS it would be with a handloaded or "re-bulleted" Sierra 125gr .311" softpoint at full 2400fps or the 762x39 PMC softpoint (which is obviously made by Sierra / looks the same , does the same thing) checked to make sure its "full power" or not . if not i could pull one cartridge down for the powder and "warm" some of the others up a bit to standard velocity . i have the equipement and 30 years knowledge to do this safely though ...

this isnt just an arbitrary choice . that Sierra bullet was made for 2600 to 2800 fps muzzle velocity . at 2400fps MV its at the bottom of its perfomance envelope but gives perfect / high recoverd sectional density/ modest 55/60 calibre beautiful flat frontal expantion down to impact velocities as low as about 1950FPS / equivalent too more than a 100meter shot (just off the top of my head) .

the high recoverd sectional density means it can carry front-first penetration much deeper than the other normal 120something grain SPs tested .

WOLFs 154gr does penetrate even deeper than that however but as you see , at the expense of frontal dia.

i'll have pictures soon .

 

[FreeRangeYODA]

wolf __154gr. sp. ___M43 FMJBT(Chicom PS,Wolf FMJBT , M43, etc)
_____2107fps MV___2330fps MV
0meters
50____+6.6"________+5.1"
100__+12.5"_______+10.0"
160__+15.5"_______+12.5"
170__+15.5"_______+12.5"
200__+14.6"_______+11.8
250___+9.8"________+7.9"
300____0.0"________-0.0'____BSZ
350__ -14.6"_______ -12.2"
400__ -35.7"_______ -29.8"
500_ -100.0"_______ -84.3"

 

[FreeRangeYODA]

WOLF 154gr SP fired into waterjugs @50ft. core penetrated 8 , 5.5" jugs
straight threw.

jacket recovered from 2nd jug .

 

[barnetmill]

I know this is an old thread, but looking at the fotos of the wolf 154 grain bullets raises a concern.

I see that these soft points are not jacketed at the base. Is there any chance that the lead core could separate in the barrel leaving the jacket lodged there? This has been reported years ago for 30-06 fmj that people use to convert to hollow points by cutting off the jacketed nose.

 

[FreeRangeYODA]

sorry for the delay

no ,
i've found no evidence of core blowout with these boat tailed types of Russian bullets (and i've been looking) however they sure can do wierd things against common cover/construction materials which is one of several reasons why i dont reccomend the HPBTs for SHTF ammo .



PICTURE : a 122gr Wolf HPBT (open base /open tip) after only passing threw a wood pallet @400m . the days Wolf HP bullets shot at the target suspended on this pallet were strewn around the sand backstop 20ft. behind all looked like this one .

if lead were extruding on fireing , it would show up as lead smear on target as is common with softpoint bullets plus , would have excessively bad accuracy