325 WSM 160gr Barnes results

[NMScout]

Today, I finally got tired of waiting for the wind to stop blowing and shot in the wind. I didn't crono today, the wind would have blown the crono over.
Conditions were 65 deg, wind quartering away from left to right 15-36 mph. Humidity 17%, Barometric pressure 29.84.
There is an airport near the range so I got wind readings from their web site.

Loads were: Barnes 160gr TTSX, .400 BC, SD .219, Cartridge OAL 2.85", .050 off lands, Fed 215 Primers, RL17 powder.

The 2 targets on the left had 68.3 charge. 0.002" and 0.000" headspace.
The 2 targets on the right were 68.7 grains 0.002 headspace and 0.000 headspace.
Two things I take away from this is; headspace doesn't make much difference and this bullet is pretty stable in windy conditions.

Quick load estimated velocity: 3258 fps.

Range:100yds

[LuJon]

Well heck, I may have to give that round a hard look in my Abolt this summer. Keep us posted when you get it over the chrony since it looks like you got the accuracy pretty well dialed in.

[NMScout]

Well heck, I may have to give that round a hard look in my Abolt this summer. Keep us posted when you get it over the chrony since it looks like you got the accuracy pretty well dialed in.

Will do LuJon, hopefully wednesday I'll give it a try.

[tlingitwarrior]

Thanks for posting, I've been really interested in this load for upcomming sheep and goat hunts.

[Snyd]

Dang, that looks like a winner. I saw your chrony results in the other thread, over 3200. I may have to try those myself. I'll have to plug numbers in ballistics program and see what the trajectory is compared to 200gr Accubonds to see if there is any real advantage to going with the lighter faster bullet.

[NMScout]

It does pretty well compared to the 200 TSX in quick target.

[stid2677]

NMScout, have you shot this load through a chrono???

Steve

[NMScout]

NMScout, have you shot this load through a chrono???

Steve

I crono'd two loads today for 325 WSM. Of course work up gradually to these charge levels and watch for high pressure signs. Although these loads are safe in my rifle, they may not be in yours.
Rifle: HS Precision 24" barrel.
Temp: 60 deg
Altitude: 5300 ft

200 Grain Barnes TSX 67.3 grains H4350
Average fps = 2967
ES 17
Lowest velocity 2961

160 Grain Barnes TTSX 68.7 grains RL17
Average fps=3211
ES 17
Lowest velocity 3200

Both shoot under 1 MOA

[magshooter]

Hello Guys - I have a Browning X-bolt .325 WSM. I love it. I have been loading Swift A-Frames and Woodleigh protected point both in 220 gr. I have used both Accurate 2700 and Winchester 760 powders (like the 2700). Also have shot a bunch of the Winchester PP 220 gr. factory.

On the factory ammo - I read it published at 2840 fps, and I get 2622 (avg) from my chrono. As my X-bolt has a 23" barrel - is this consistent? My question is is there a formula to use to adjust 24" barrel data to 23" barrel data?

Also - is there a formula for pressure if I know exact bullet data and muzzle fps (plus environmental data)?

Happy to see the 160 gr data. I just ordered a box from Midway. I'm a little confused on the relation of BC and accuracy. Is shooting flat inherently accurate? Nice to join you guys.

[Snyd]

magshooter.... welcome to the forums! I'll chime in on a few of your questions/thoughts.

23 vs 24 inch barrel. I don't think it matters that much. I also think it may be the way the manufacuters measure thier barrels. I have a Kimber and they say it's a 23inch barrel. I measure it at 24.

Ammo manufacturers published velocity can differ from gun to gun. But, the winchester accubonds that are supposed to be 2950 chrony out of my Kimber at right about 2940 for 5rnd avg if I remember right.

BC makes a bullet a good flyer. I'll leave it to the experts around here to explain it all. But, I know that the 200gr AB's have a high BC and are very accurate in my Kimber. The 220gr Gamekings are as well. I doubt BC makes a bullet inherently accurate. There are many other variables like brass, powder, OAL, the specific gun/chamber/barrel, etc.

[magshooter]

I measure my barrel at 23" by a dowel into the muzzle up to the bolt.

I'm looking for a load for 220 GR A-Frames. I see an article in Guns & Ammo that lists MagPro in a load. Also on this forum there are threads that develop MagPro for the .325. Accurate does not list that load. I contacted Accurate and was told that MagPro was 'way too slow' and to use 2700 as listed in their load guide. I am partial (I don't know why) to Accurate 2700 and Winchester 760. I also have a pound of Norma 204. In the relative burn chart the 204 is slower than 2700 and 760 and MagPro.

My bullets are:
Woodleigh 64G 220gr
Swift AFrame 220 gr
Barnes TTSX 160gr
Barnes TSX BT 200gr

The data from Barnes suggests 2700 for the TTSX 160gr, and Win760 for the TSX BT 200gr.

I've got 1"groups with the Woodleigh & 64gr 2700. I'd like some more fps though (avg 2650 in cold weather)

The A-frames are scattered about trying 2700 & 760 at 64gr and 61.5 gr respectively.

Any comments?

And I might need to try some Game Kings - they seem to have a good reputation.

[Snyd]

Any comments?

And I might need to try some Game Kings - they seem to have a good reputation.

I contacted Sierra about the 220 GK's. They were designed specifically for the 8mm RemMag. They have thicker jackets than say the .30 bullets. If you haven't seen the big 325 load thread check it out. Stid has done a TON of load development. At this point I'm settled on 220 GK's over IMR 4007 SSC at 2800fps and 200gr AB's at about 2940 with the same powder. Both loads are MOA or better in my Kimber if I can do my part.

[stid2677]

I measure my barrel at 23" by a dowel into the muzzle up to the bolt.

I'm looking for a load for 220 GR A-Frames. I see an article in Guns & Ammo that lists MagPro in a load. Also on this forum there are threads that develop MagPro for the .325. Accurate does not list that load. I contacted Accurate and was told that MagPro was 'way too slow' and to use 2700 as listed in their load guide. I am partial (I don't know why) to Accurate 2700 and Winchester 760. I also have a pound of Norma 204. In the relative burn chart the 204 is slower than 2700 and 760 and MagPro.

My bullets are:
Woodleigh 64G 220gr
Swift AFrame 220 gr
Barnes TTSX 160gr
Barnes TSX BT 200gr

The data from Barnes suggests 2700 for the TTSX 160gr, and Win760 for the TSX BT 200gr.

I've got 1"groups with the Woodleigh & 64gr 2700. I'd like some more fps though (avg 2650 in cold weather)

The A-frames are scattered about trying 2700 & 760 at 64gr and 61.5 gr respectively.

Any comments?

And I might need to try some Game Kings - they seem to have a good reputation.

Here is some data I have using the 325wsm.

[elmerkeithclone]

I crono'd two loads today for 325 WSM. Of course work up gradually to these charge levels and watch for high pressure signs. Although these loads are safe in my rifle, they may not be in yours.
Rifle: HS Precision 24" barrel.
Temp: 60 deg
Altitude: 5300 ft

200 Grain Barnes TSX 67.3 grains H4350
Average fps = 2967
ES 17
Lowest velocity 2961

160 Grain Barnes TTSX 68.7 grains RL17
Average fps=3211
ES 17
Lowest velocity 3200

Both shoot under 1 MOA

NMScout; You probably said it somewhere but I missed it.......what gun is your 325WSM?

I have a Winchester Classic with a 24 inch barrel and loading 67.5 grains of H4350 with the same TSX bullets 2870fps.

The velocities that cronies print out probably vary as much as different rifles do.

I bought this gun on a whim a couple of years ago for a very reasonable sum! I have gotten it out of the back of the cabinet to sell a couple of times and end up putting it back. I have a 243 and 308 that match this 325 and those three guns alone make up 3/4 of a perfect centerfire rifle battery.

[Snyd]

elmer.... FWIW...when I was developing loads for the 200 AB's and the 220GK's IMR 4007 SSC gave higher velocities than H4350 in my gun all else being equal. I could not load to the same velocities with it as the 4007 before getting pressure signs.