300 RUM Pet loads
I looking to see who is having great luck loading the 300 Ultra Mag.
I shoot a Sako 300 UAM. I have had some luck with Barnes XLC, tripple shock. I would love to hear what is working for you. Have had a hard time with C.O.L data for the Barnes line. Any help would be great. Any powder recomendations?
I shoot a Sako 300 UAM. I have had some luck with Barnes XLC, tripple shock. I would love to hear what is working for you. Have had a hard time with C.O.L data for the Barnes line. Any help would be great. Any powder recomendations?
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quote:Originally posted by JustC
agreed,..I can't use it for deer anywhere even close to short range,..I defintely opt for lesser guns during "meat" season[8D]
I wonder what a 150gr NBT would do to a groundhog[:D]
I'm pretty sure a direct hit in the chest would put one down [:0][;)][:D][:D] -- Pretty much just red mist.
But shoot, there's no sense in messing around with those heavy bullets -- just get some 125gr Ballistic Tips or 110gr VMAX to make sure they expand [:D][:D].
I don't have groundhogs where I live, but I have shot rockchucks in Wyoming with a 300 Win. Mag. and 165gr Ballistic Tips and it wasn't pretty.
I used to routinely shoot ground squirrels with a 308 Win. and 125gr & 150gr Ballistic Tips and there wasn't much left of them [}:)][:D].0 -
I ran a 125gr NBT out of a 30-06 for a while,..but when I shot that sika deer in the front chest at like 7yds,..well let's just say I went to a different bullet[:0][xx(][:D]
I wonder if the 125gr NBT would make it out of my 10 twist and remain intact0 -
quote:Originally posted by JustC
I ran a 125gr NBT out of a 30-06 for a while,..but when I shot that sika deer in the front chest at like 7yds,..well let's just say I went to a different bullet[:0][xx(][:D]
I wonder if the 125gr NBT would make it out of my 10 twist and remain intact
Although I've never shot the 125gr NBT out of the 300RUM, my guess is it would. Pretty tough jacket on that bullet. I've seen some outrageous velocity claims from wildcat cartridges in various calibers that used the NBT and it stayed together, of course it'll explode at those velocities if it hit's something of substance. Ought to be great on varmits if it did stay together in flight at not to far ranges. Only way to know for sure is to try it.
I think the 150gr NBT would be more accurate at longer ranges, say 350-400yds and out. They always were in my 308.
I did used to shoot the 125gr in a 30.06 with a tight 26" bbl with a 10" twist and alot of Varget powder that clocked 3350-3400fps and it was suprisingly accurate. I used it for coyotes.
The 308 was a 26" Remington VSSF (one of the first year production guns when they made them in 308 win.) and with alot of Win.748 powder it was right at 3200fps and very accurate to around 350+ yds, but past that the 150gr was more accurate. Used to shoot ground squirrels alot with that and it worked fine. Most of the places I was shooting them didn't allow for much more than a 400yd shot anyway due to the lay of the land (hills & washes).
The little 40gr NBTs stay together in the 220 Swift going way up in the 4000-4300fps range with no jacket problems too, so my guess is the 125gr will stay together in your 300RUM with 10" twist.
That would be some obscene velocity -- Let us know if you try it and how it works out [^].
P.S. = Don't shoot another deer at close range with that one [:0][:D].0 -
Looks like the reloader -25 and the 200grn is the way to go,,I cant wait to try them.
Found this on Noslers web site forum.
Propellant type........... = Alliant Reloder-25
Charge weight..........(gr)= 93.5 Load density......(g/cu.cm)= 0.921
Heat of Explosion (cal/lb)= 412777 Ratio of spec. heats cp/cv = 1.229
Solid density (gr/cu.in)= 409.7 Weighting factor...........= 0.5
Burning rate factor Ba(1/s)= 0.384 Pro-/degressivity factor a = 1.250
Burning limit ......... z1 = 0.7 Combust.Chamber Vb(ft3)= 2.323668E-4
Factor.................. b = 2.276 X-S.Area of Bore A(ft?)= 5.104334E-4
Bulk density (gr/cu.in)= 231.4 Projectile mass mp (lb)= 2.571429E-2
Loading ratio (%)= 100.6 Projectile travel x(ft)= 1.981988E+0
**** Results calculated:
Maximum pressure ........ = 64837 psi Way of projectile at Pmax = 3.53 in
Muzzle velocity ......Ve = 3271 fps Muzzle pressure .......Pe = 13215 psi
Project. energy at muzzle = 4276 ft.lbs Fraction of powder burnt = 100 %
Projectile travel time from 10% Pmax to muzzle = 1.2 ms0 -
It's a thumper ! Good Luck & let us know how it works for you [^]. 0 -
I sure will,,,,Im off for Elk Camp in the morning,,,looks like more snow on the way.
Thanks again for the help and Advice.0 -
Remington 300 ultra mag is it for me..loaded with 80 grains imr 4350 cci 250 magnum primers and 185gr berger hunt vld out of a Remington sendero sf II topped with weaver 3x9 wideangle scope. cover 3 shot group at 550 yds with snuff can. start seating bullet in magazine well enough to feed well in chamber,make 5 rounds. run seating die down half round, make 5 more.continue this until you have a total of 20 rounds. one of those 4 groups will clearly outshoot the others.clean barrel before every 5 shot group and let barrel cool before every test.hope this helps.. 0 -
Probably won't help, Skipit. After 7 years the barrel is probably worn out.... 0 -
Where does the time go.. didn't even notice the post date. this method of bullet seating works on most rifle rounds and hopefully someone else can gain from this. anyway have a good one. 0
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