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Don Fischer's picture
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Location: Antelope, Ore
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Nosler partitions

Several times over the years I have though about trying partitions on game and find myself there again. I recently bought a hundred 125gr 6.5 bullet's and am finding the same thing I've always found, they don't shoot all that well. So far the best group's have all been around 2". Just to satify my couriousity I've taken along my 129gr loads and they shoot fine. Am I missing something here?

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Location: Summit, IL
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Nosler partitions

Hey Don, Ive found with a couple of my rifles that with the Partitions they are VERY picky about the OAL to the lands.... My 7mm mag Rem Likes it .012 off the lands where as my .300 win mag likes them .055 off....Yet with Barns they BOTH like them ..055 try twiddling with the OAL and see if you get better groupings and good luck

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Nosler partitions

I always went by the standard of .062 inch off lands to start with(Read it decades ago in a benchrest shooting article) If the 125s are seated the same as the 129s, there should be no noticeable difference????. Using same cases??
But if anybody can figure this problem out, "you the boy"

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Location: Summit, IL
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Nosler partitions

dont ask me why but YEP there are differences...even with the same case and all. I think it has to do with the jacketing on the bullets...Not 100% sure as to why but I have seen this many times myself. Try toying around with it a little and see if you notice the difference. You could also try a little slower powder since you have lightened the grain on the bullet but make sure you stay within cup. Some rifles can be VERY finiky and just dont like certain bullets no matter what ya try.. Good luck

Don Fischer's picture
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Nosler partitions

I have never measured the distence off the lands. I work the bullet in slowly until no more land marks appear on it. That could well be the problem tho. This rifle has a long throat. I had it chambered to be able to seat a 140gr bullet to the base of the neck and be just off the lands. 140gr Noslers shot fair that way, but not great. Now the 125 gr doesn't get close to the lands and shoots poorly. The 140gr Hornady's stay right around 1" all the time.

Just got back from shooting where I tried some primer changes. Not any noticeable change in group size. Best group yet = 1 3/4". Took out my 129gr loads and shot them. Two 3 shot group's 1 1/8th and 3/4". The rifle still shoots.

I got crazy yesterday thinking I had a bedding problem but couldn't detect anything other than a couple tight spots in the barrel channel with a business card. Took them out and made sure the barrel really floated. 129gr bullet's still shoot the same way, no change with 125gr part. I think you guy's might be right. Kinda wish I still had a wife so I could use this new excuse for a new rifle. I've got what's left of 100 125 gr Nosler's, very expensive bullet's. Need a 260 Rem with a stanrard throat to shoot them out of. What a waste of a great excuse! Now I gotta do it just cause I can.

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Nosler partitions

I would try seating one with the action, measuring and drop it back a few thousandths, and a little more if necessary. The magic number is there somewhere.
Oh, need a wife? How far are you away from the Portland airport Think Think Think

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Location: Summit, IL
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Nosler partitions

After seeing that you had it chamberd that way I see you are screwed...New rifle time...DARN huh....Lighter bullets rarely perform well very far off the lands in my experiance anyway and from what you are saying you are well beyond .065 with the 125's....and thats not very good grouping for the 129's either (thats if you are doing your part with the shooting). Anything over an inch MOA while hand loading is not acceptible in my book...But Im kinna picky too. Some are happy with 1 1/2 groups....If I cant get ANY of mine to group better than that they get reworked or wrapped around a tree banghead Good luck to ya

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Nosler partitions

cam69conv:
What would "screw it"? I don't understand what you mean?. It is just a matter of some fine tuning. If I read Don right, the 129s are working just fine, so we have to figure out the problem and correct it.

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Nosler partitions

Cuzz it sounds to me Hammer that he has it throated to deep for the shorter 125's....And like I said...the best he has gotten outta the 129's is 1 1/8 out to 1 3/4 Not good at all....I dont have the rifle in my hands so I dont know for SURE but thats what Im guessing since he had it throated to accept just off land with 140's then he wont be able to seat the 125's close enough to get better performance...Bout all he could do...and this is a shot in the dark...is try to reduce load on powder a little and see if that helps...from what I can gather on the info we have he is probaly getting bullet jump which will have BAD effects downrange...LMAO....he is LOOKING for an excuse to get another gun anyway....May as well use THAT as one Yes

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Nosler partitions

Maybe I'm out of tune again but in his initial post he said:

Just to satify my couriousity I've taken along my 129gr loads and they shoot fine.

Don, get the hell back here and explain yourself, I don't want to fight with the neighbours.. Think Think Think

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Nosler partitions

Just got back from shooting where I tried some primer changes. Not any noticeable change in group size. Best group yet = 1 3/4". Took out my 129gr loads and shot them. Two 3 shot group's 1 1/8th and 3/4". The rifle still shoots.

Im taking that as to say he shot 2 3 shot groups with the 129's and that was his performance.....now I KNOW you would NOT accept that as good performance Hammer!!! 1 1/8 to 1 3/4???? He is having probs with them both but accepting that as good performance!!!

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