300 win mag 1:11 twist

[Pat (Australia)]

Hey guys I am looking for some advise I am looking at working up a load for the 200gr Partition and was wondering if my 1-11 twist barrel would be ok for this grain weight

 

[TackDriver284]

It's possible that you should be fine with a 200 grain in the 1:11 twist, you should be close to the end of the stability threshold. I use a 1:10 twist on mine and it loves the 180 grain AB / BT. Put them on paper and see what it tells you. Keep us posted.

 

[Pat (Australia)]

is there a chance I won’t find a decent group out of the load test ? Starting at 65gr ADI 2209 to 68gr. Sorry for the dumb. Question but in Australia these bullets are $180 per 50pk. Would it be safer to go the 180gr Partition or AccuBond

 

[xphunter]

Hey guys I am looking for some advise I am looking at working up a load for the 200gr Partition and was wondering if my 1-11 twist barrel would be ok for this grain weight

How many rounds down the barrel?
What elevation will you be hunting at?
I am thinking with the speed you will have a 11T will work.
The Partition is likely to stabilize better than the AccuBond will
What kind of accuracy are you going after?
What will be your maximum hunting distance?

 

[SJB358]

Hey guys I am looking for some advise I am looking at working up a load for the 200gr Partition and was wondering if my 1-11 twist barrel would be ok for this grain weight

They’ll work fine Pat. Even the 200 AB will work in the 11. I’ve seen 208 AMaxs work fine in 1-12 308’s.

A few friends have Echols Legends in various 300’s that are all 1-11 twist guns.

I think you’ll be fine.

 

[Pat (Australia)]

How many rounds down the barrel?
What elevation will you be hunting at?
I am thinking with the speed you will have a 11T will work.
The Partition is likely to stabilize better than the AccuBond will
What kind of accuracy are you going after?
What will be your maximum hunting distance?

Hey mate, will be hunting in Australia and looking for MOA and max range will be 350 yards, wanting to work up a load for Sambar stags and red deer stags and also buffalo so thinking the 200gr PT will be useful for all three of those. I am currently using 178gr ELDX and get half MOA currently but wanting a more premium hunting round only thing is they cost $180 here for 50 so dam expensive but I am sure I will find a node between min and max load hopefully

 

[JD338]

I think the 200 gr PT would work perfectly for what you are hunting and the ranges you will be shooting.

JD338

 

[xphunter]

Hey mate, will be hunting in Australia and looking for MOA and max range will be 350 yards, wanting to work up a load for Sambar stags and red deer stags and also buffalo so thinking the 200gr PT will be useful for all three of those. I am currently using 178gr ELDX and get half MOA currently but wanting a more premium hunting round only thing is they cost $180 here for 50 so dam expensive but I am sure I will find a node between min and max load hopefully

Since you were getting 1/2 MOA with the ELD-X, MOA shouldn't be a problem with the Partition.
Don't let the cost of bullets get in your head.
It is more important to get a good load and then a solid zero.

How many rounds through the barrel since it was new?

 

[Pat (Australia)]

Since you were getting 1/2 MOA with the ELD-X, MOA shouldn't be a problem with the Partition.
Don't let the cost of bullets get in your head.
It is more important to get a good load and then a solid zero.

How many rounds through the barrel since it was new?

Cost doesn’t really worry me it’s just I don’t want to buy them and not get a good loading out of it, still undecided on the Partition or AccuBond but rifle has about 70 rounds through it, got it not long ago

 

[xphunter]

Cost doesn’t really worry me it’s just I don’t want to buy them and not get a good loading out of it, still undecided on the Partition or AccuBond but rifle has about 70 rounds through it, got it not long ago

My guess is that your 11T barrel will stabilize the Partitions just fine.
Given the distances you will be hunting at, I would stay with the Partition, and not look back.
Nothing wrong with trying the AB as well if you want.

 

[grry10]

In working with a 300 Ultra Mag (Sako) with a 1:11 twist, I found 200 grain bullets to be marginal. Loads had be at or near max velocity and groups would still start opening beyond 200 yards. I finally gave up and went to 180 grain bullets with much better results. It may have been the rifle or these particular bullets, they were not PTs. This is my two cents on 200s with 1:11 twist.