Quick range trip :(

[wisconsinteacher]

Well I was able to get to the range and shoot 3 rifles after work. I shot my last 5 break in round through the 6BR and shot a .550 5 shot group at 100 yards just playing around. The other rifle was dad's new 25-06 and the father-in-laws 30-06. Dad's rifle did okay with both charges before so I wanted to compare them again with a clean barrel. I shot 3 foulers then the two 3 shot groups.

Dad's 25-06 with RL19 and 110 AB.
50.5gr-1.246"
51.0gr-1.550"



This was the first time with IMR4350 and the 165 PT. I am starting to think I may need to try a different bullet just for kicks. I do notice that all 3 groups had 2 in and 1 out. Maybe I need to shorten the load and try all 3 charges again???

30-06 with IMR4350 and 165 PT

57-1.927"
58-2.334"
59-1.988"

 

[Sas874runner]

You may take the 57 gr load and 3 rounds each with a seating depth.015-.020" deeper to see if the group will tighten. How far off the lands are you. I have seen a few rifles that do not like partitions but not often. I have always been able to get the accubonds to shoot well. But looking at the groups you may very well be able to tighten one of those up. Did you have any chrony readings?

 

[Oldtrader3]

I shoot the 165 Partition with 57.5 gr of IMR 4350 and the FED 215 MM primer. Partitions usually are more accurate when set a little further from the lands. I run mine at about 3.340 COAL in the .30-06

 

[Vince]

I run in to this a lot when working up loads.
What I've discovered is that finding a different bullet, with the right powder charge, is usually the best solution. I'm finding that the bullet is more critical than the powder but each is an important component to the entire puddle. If it were me I'd be looking at a different bullet. I'm doing that with my .338 right now.

 

[wisconsinteacher]

I am .01" off the lands. I wanted to start out as far as I could. I was hoping that the PT would be magic in this rifle.

 

[SJB358]

I am .01" off the lands. I wanted to start out as far as I could. I was hoping that the PT would be magic in this rifle.

I wouldn't give up. Go at the process systematically, shorten your best load .015" at a time.. Something will show itself. I think your doing fine. The 165 PT is as accurate as any bullet and sometimes it takes a little more working to find magic.

 

[efw]

For your dad's rifle consider my experience:

viewtopic.php?f=4&t=27417

...and if kiss'll function thru his rifle give it a try; you'd want to drop charges back a tad & work back up though. Has RL19 worked well through his rifle in the past? You might consider a slower powder like RL22 or H-4831? I'd be willing to bet you could go hotter w/ the RL19 leaving them at the same COAL as you're currently testing, assuming you weren't seeing signs of excess pressure w/ these.

I haven't ever worked w/ the 165 NPT so I got no insights there.

 

[Vince]

I shoot a lower charge with a 100 grain Partition in my 25-06 and it shoots in the 0.5" - 0.6" range all day long at 100 Yards.
Start low and work your way up is my advice. What I tend to do is work through the powder charges at book COAL and then tweak from there after finding a load I like.

 

[wisconsinteacher]

Dad's rifle is new with about 40 rounds through it. I shot a .5" with the 51.0 before. Maybe that was a fluke. I do have some H 4831 that I could try. I will take the 30-06 maybe try 59.5 and 60.0 because I see no pressure signs at 59.0 then try shortening them down.

 

[billbam]

Maybe try seating them in a bit and see what happens. In my old Remington, I ran Nosler 165/180’s both at 3.310 OL and they shot. Now with the Weatherby S2, I’m at 3.315 OL with the 168 BT’s shooting under an inch. The partitions usually shoot pretty well in most rifles.

 

[truck driver]

I can't remember how your fathers rifle is set up ,stock,synthetic or wood?

 

[wisconsinteacher]

Dad's rifle is a Tikka T3 synthetic stock rifle.

 

[rodell]

Definitely shorten up a bit. It's probably your fastest way to an acceptable load.

I'm convinced you can make any bullet shoot if you approach it systematically.

 

[truck driver]

Dad's rifle is a Tikka T3 synthetic stock rifle.

This may sound redundant but did you check the action screws? I don't believe that has a metal action block and if the screws are loose or over tight this could be part of the problem since you said it shot great the first Time out and now it doesn't. Over tightening the screws can have some adverse reactions especially in plastic/synthetic stocks.

 

[Sas874runner]

For your dad's rifle consider my experience:

viewtopic.php?f=4&t=27417

...and if kiss'll function thru his rifle give it a try; you'd want to drop charges back a tad & work back up though. Has RL19 worked well through his rifle in the past? You might consider a slower powder like RL22 or H-4831? I'd be willing to bet you could go hotter w/ the RL19 leaving them at the same COAL as you're currently testing, assuming you weren't seeing signs of excess pressure w/ these.

I haven't ever worked w/ the 165 NPT so I got no insights there.

+1 rl 19 worked very well in my 30-06 with the 165 ab and Partition. Rl22 gave me good accuracy but was not near as high velocity as 19. Rl19 also gave tighter groups. I don't have my info with me but I believe I was around 61 or 62gr of rl19 with the 165ab and running about 2870 with a22" barrel