Best 7MM WSM loads?

[JeffVN]

Mine loves RL-25, but not the summer heat in Las Vegas, so I now shoot H1000, with the exact same loads and velocities as reflected above with 66.3 H100 with the Berger 180s and the Sierra 175s. I tested Retumbo, and got 50+ fps more velocity with safe pressures, but did get a chance to test for accuracy - that is next on my list

JeffVN

 

[esorensen]

Try H4831 long or short cut. 62.5 gr and a 180 JLK gets me ~2927. This load is 1/4 moa capable as long as I do my part. Have tried H1000 and H4350 as well. All of the powders tried were accurate, and gave good speed. The load above is a lower pressure load in my particular rifle. Yours maybe not. Did the above load with 168 Berger as well and it shot the same hole.

I value accuracy most of all, however, insensitivity to temperature is a very close second. My 7WSM is set up a little different than most, but I believe any of the accurate loads I have found others using and worked up to were accurate in mine as well.

 

[IChaseCoues]

Not wanting to hijack this thread, but since it is titled
Best 7mmWSM loads....

Does anyone have a pet load for the 154 SST or 160 Accubond?
I'm building another 7WSM and plan on shooting one of the above, preferably the SST if it's accurate.

 

[115vld]

My 7WSM is set up a little different than most, but I believe any of the accurate loads I have found others using and worked up to were accurate in mine as well.

Esorensen, can post a pic of your rifle. I have a feeling it is set up like mine.

Its soul purpose is shooting from 500 to 2000 yards.

Chase

 

[esorensen]

For faster results, give me your email. I have yet to set up an account with photobucket.

 

[115vld]

Email removed

 

[esorensen]

You've got mail! Post if you like!

 

[115vld]

Well everyone,

here is the pics of Erics 7WSM. He runs 180 JLK's through it.

3 shot group at 875 yards

Doe taken at 408 yards

Erics rifle is easily a sub 1/2 MOA rifle out to 1000 yards

 

[loaders_loft]

Model 70 rebuilt with pacnor 26 supermatch SS barrel, classic laminated stock inletted & glass bedded with decelerator pad and timney at 2 3/4Lbs.

Break in was as specified by Pacnor. shoot1/cleanx10, then shoot3/cleanx10, now I'm up to shoot5/clean while working up a load. Cleaning has been strictly with mops & patches. This barrel may never see a brush, nor need one.

I'm planning to test the 140 & 160 gr Accubonds as well as 150 ballistic & e-tips. I'm able to reach the rifling with these bullets in short action magazine. I think Pac-nor reamed it with a short leade. Those guys are great.

I'm not so sure about the 168gr bergers & A-max. Can I even seat them to fit the mag, without seating past the bullet shank? Maybe someone with a winchester wsm action has tried this already?

I'm planning to restrict powders to H1000, H4831 SC, and H4350, unless they absolutely won't work, then I'll try magpro, RL19, and/or RL22.

Initial test loads for this weekend are 140's touching lands, with H4831sc, working up to Nosler's max. We'll see...

 

[IChaseCoues]

If your throat and lead are short enough, they will fit.

There isn't a lot of bullet shank outside of the case.

I shoot a 180 Berger in a WSM action, and there's enough mag length to jam them in the rifling about .020".

 

[Boss Hoss]

This is good info---my 6.5 WSM is going to be finished this week and this give me some ideas!!

 

[115vld]

LL,

Why not try a 140 gr Berger? Get a better BC and terminal ballistics. That is a very explosive bullet. All energy will get transfered into the animal and not the hill behind it

Chase

 

[cabinfever]

McWhorter 7 WSM custom with a 24 inch hart #5 light contour.

180 berger vlds, 69.0 grns of Hodgdon Retumbo, Winchester Brass, Federal 215 primers, most accurate seating depth is .010 & .051 off the lans. I started seeing pressure signs @ 70 grains of powder so I backed it down to 69.0 grains which is still a compressed load but very accurate. Average MV is 2971.

 

[The Duke007]

Is there a better powder for a 24 inch barrel shooting 180 bergers as opposed to longer barrels? What powder is best for a 24 inch barrel?