Rem 700P 300WM Accuracy Issues

[Gunner75]

Rem 700P 300WM Accuracy Issues UPDATED

Pulled a Rem 700P from the rack to set up to go elk hunting this year.

Rem 700P
B&C LT Tactical Stock, bedded, floated, etc
Leupold 4.5-14x50LRT M1 TMR
Leupold MK4 rings and base.

Ran some factory Hornady 165gr IB ammo through it. Had 5 boxes, 2 were old, 3 were new. The two old boxes shot well, not great, but MOA 1/4 ish. Very consistant. Went to verify at a couple different ranges on the third box. WOW, this thing is like a 3MOA gun now. And so was the rest of the ammo.

I had pulled the scope and rings off of a custom Sako in .260 I built. I didn't have to seperate the rings from scope, rails lined up perfect.

Heck with the factory stuff, can't get it anyway. Time to reload this thing.
Started with H1000 and 180 Accubonds. H1000 shot like the three boxes of Hornady, .....It didn't......

Switched to RL22 and ran the 180 Accubonds at 3,088 with F215M primers and 75.5gr charge.
Better, but not good by any means. What I mean is that I could live with 1.5" MOA to 500 if it was consistant. It is not even close. This load does shoot better than the compressed H1000 and a bit faster. I am running these at 3.550OAL btw.

The crown on the rifle wasn't great, but not dinged up, etc. I cleaned it up and it looks to be fine. Consistent carbon tracking off the lands.


Anyone have any suggestions, ran into something similar, what bullet does yours prefer?

Thanks

 

[Gunner75]

Ran 5 each of the following tonight. 73.5, 74.5, and 75.5gr RL22 with a 175SMK in front of it.

Flat shoot's very well compared to the AB's. Sub .8" 3 shot groups. The remaining 2 out of each charge was shot at 300yrds on steel. I know it doesn't say much, but the three 2 shot groups were very very impressive.

The Accubonds were not even close.

Awaiting Bergers for the actual hunting bullet. Hopefully they run as the SMK's did.

 

[johnnyk]

Gunner75,
I had good luck with the 180gn Ballistic Tip and 69.0gn of H4350. I ran this combo up to 72.0gn and got good velocity (3154fps) but accuracy (.7675") was not as good as the former powder charge (Vel: 3094fps / accuracy .370"). Would love to have both velocity and accuracy but can't with my rifle and this powder. The Ballistic Tip did worse with RL22.
I tried the 180gn SMK with RL22 and 9.5M's and everything hovered around an 1" until I got to book max (75.5gn) and it settled down to .346". I think velocity ran 3133fps, which I thought was pretty decent.
I've also tried the 190gn SMK with RL25 (75.0 - 77.5gn) and best accuracy was at 76.5gn (.510") and velocity ran 3021fps. Good but not great, IMO. JohnnyK.

 

[LONGSHOOTER]

Have you tried partial neck resizing?

 

[Gunner75]

Re: Rem 700P 300WM Accuracy Issues UPDATED

168gr Berger VLD
F215M Primers
Win Brass
OAL 3.525
Ogive 3.838

RL22

74.5 3,037fps avg
75.5 3,082fps avg
76.5 3,115fps avg
77.5 3,192fps avg


I loaded 8 rounds each. Fired a 3 shot group of each at 100 and then a 5 shot at 200. Unfortunate, I was pressed for time to get back and feel I rushed testing this. This is what I came up with. I think it is pretty promising on all loads, but will run with the 77.5 today to see what it does on out.