.357 magnum

[roberti11]

Having a hard time finding SP magnum primers, can I substitute SR primers instead and start a few grains lower and work up to the same velocity??

Thanks in advance

 

[cycbb486]

I just use small pistol primers in my 357 Magnum loads. Never had any issues...........

See no need for the magnum.......

 

[saskgunowner101]

I just use small pistol primers in my 357 Magnum loads. Never had any issues...........

See no need for the magnum.......

My experience as well....

 

[H4831]

No need for magnum primers in a 357 magnum revolver.

 

[gunrunner8]

Having a hard time finding SP magnum primers, can I substitute SR primers instead and start a few grains lower and work up to the same velocity??

Thanks in advance

Straight answer for straight question...IMHO-no. You see SR primers are having stronger and harder cups ment for ....rifles. The same primers in pistols with much lighter fireing pins strikes might cause misfires.

 

[roberti11]

Thanks guys, WSP it will be!

 

[Sgt.RazorBurn]

How much can you expect to save reloading .357? Buying it from the store is at least .50 cents a round where I can get it.

 

[gunrunner8]

How much can you expect to save reloading .357? Buying it from the store is at least .50 cents a round where I can get it.

I cast my own bullets from w-w with some linotype and tin added. Beyond initial expense for electric melter, mold, dipper and such I can load my 357Mag ammo for about 12c ea.

 

[LUTNIT]

Rifle primers are also taller and may stick out of the case a tad.

 

[roberti11]

How much can you expect to save reloading .357? Buying it from the store is at least .50 cents a round where I can get it.

The stores in Ontario record my Name and phone number and leave it in a book on the counter..... No thanks

 

[handofzeus]

I've never used magnum primers in .357 either.

 

[Spawn-Inc]

I've tried magnum but didn't notice any difference. So I didn't bother with them anymore.

And with reloading using my cast bullets works out to 10 cents per round.

So about $5 for 50.

 

[Boomer]

How much can you expect to save reloading .357? Buying it from the store is at least .50 cents a round where I can get it.

Essentially you save the cost of the brass when handloading, but much depends on your choice of components. Primers cost about 3 cents a round regardless of your load, however, your choice of bullet and powder will dramatically effect your cost per round. You can expect a high tech expanding bullet to be expensive, but a cast lead bullet costs only a few cents. A pound of powder costs about $35, and typically you could load 435 rounds of full power .357 from a pound of H-110, or you could load 2000 rounds of .38 target loads from a pound of Bullseye. Light loads of fast burning powder provides longer case life, further stretching your shooting dollar. To me the real advantage of handloading is the added versatility it gives my guns.

 

[dakotamar]

I get my sp magnum primers from leBaron's in Ottawa. Are they in T.O.? Bass Pro seems to carry a lot of ammo and supplies also, maybe give them a call.