Help with your pet loads for .300 win mag

[sgt.rock]

Just got a new .300wm and I'll be damned if I can find ANY real data for reloading X bullets. I only own a LEE reloading book, and there isn't any data for the 5 powders I have on hand. I have no way to get any other powders, or even a new reloading book within the next 2-3 weeks (I live up north in the middle of frigging nowhere)
Can you guys share your recipes or even listings from your books USING ANY OF THE POWDERS I HAVE LISTED BELOW.
I have: Reloader 19
Reloader 22
H414
IMR4350
H4895
I have magnum and regular rifle primers.
I have 165 and 180 grain X bullets.
Please let me know :
Cartridge OAL
start/end grains (if from a book and what book)
crimp/no crimp
primer type
Speed of your rounds if known and barrel length shot out of.
this is kind of a semi-emergency as I plan on taking this gun out next weekend to smack down some wolves, so I have to load up and test some rounds (plus sight in a scope) so time is of the essence.
PLEASE HELP A GUY OUT.
CHEERS TO ALL YOU GOOD GUYS!!

 

[Northman999]

I like IMR 4831, but love RL -17 in my 300 win mag.

I use Winchester 180gr PP soft points and I just seat them so that the case mouth is right in the middle of the cannelure. Since factory ammo comes loaded just like that I thought I would start there and my own results were great, so I didn't mess with it any more.

I use CCI# 250 magnum primers, but have read that the 300 win mag works fine with normal large rifle primers.

You can look up specfic data on Barnes bullets on their web site - they list actual 300 win mag load data.

If I had your components....I'd prime my brass with magnum primers, throw in 67 gr of IMR 4350, seat a 180gr bullet 10 thou of the lands and start there, working up in 0.5gr intervals and keep adding powder until your groups either get larger than 1.5", or you start seeing pressure signs.

But that's just me.

Good luck with the wolves...post some pics!

 

[sgt.rock]

I like IMR 4831, but love RL -17 in my 300 win mag.

I use Winchester 180gr PP soft points and I just seat them so that the case mouth is right in the middle of the cannelure. Since factory ammo comes loaded just like that I thought I would start there and my own results were great, so I didn't mess with it any more.

I use CCI# 250 magnum primers, but have read that the 300 win mag works fine with normal large rifle primers.

You can look up specfic data on Barnes bullets on their web site - they list actual 300 win mag load data.

If I had your components....I'd prime my brass with magnum primers, throw in 67 gr of IMR 4350, seat a 180gr bullet 10 thou of the lands and start there, working up in 0.5gr intervals and keep adding powder until your groups either get larger than 1.5", or you start seeing pressure signs.

But that's just me.

Good luck with the wolves...post some pics!

I tried on the barnes site, but they only list 1 or 2 powders that I have. Those loadings haven't been updated in years as they are the same couple that were on there a few years ago when I owned a .300wm before.

 

[nanuk]

I used slower powder than what you have listed 'cept for maybe RL22

 

[Biggunners]

Late but ......
Speer Reloading Manual # 10
IMR4831/165gr/72.0=3043 - 76.0=3226
H414 /165gr/63.0=2731 - 67.0=2957
IMR4350/165gr/70.0=3046 - 74.0=3215
My personal pet load with Ballistic Tips -----
H4831SC /165gr/78.0gr=3150 +/- 20fps
.
.
.
IMR4831/180gr/69.0=2771 - 73.0= 2996
H414 /180gr/62.0=2632 - 66.0=2848
IMR4350/180gr/68.0=2869 - 72.0=3049
My personal pet load with Partitions -----
H4831SC/180gr/75.0gr = 2960 +/- 20fps

IMR4831 is a bit faster than H4831SC that's why they have little less amount of powder but it would start showing the signs of over pressure if you try to maxed out the case capacity , on the other hand drop down to 10% of ALL the loads given by any armchair expert and ( Little cramp and Magnum Win Primers )

I'm waiting for an invitation from a Sgt. to hunt in the country of NOWHERE for giving Free advise

Be Safe and Shoot Longer - Biggs