.350 Rem Mag 225 gr TSX load?

[Moosen]

I've just started loading for my new to me .350 Rem Mag (M7, 20" barrel). I've had a bit of luck with 200 gr. Hornadays behind 59.5 gr of R15.

But what I'd like to have as my "go to" load is 225 Barnes TSX (these bullets work great in other calibres I've used). I've heard that Ramshot TAC is the ticket, but I'm in Yellowknife and so powders I have are the ones I've got to work with for now. H4350, R19, R15, and Varget, and these two types of bullets.

Anyone had any success with any of these pweders for either of these bullets?

Also, I read somewhere to use non-mag primers with .350 Rem Mag, (.35cal.com I think) but all the load data in my manuals (Speer, Nosler, Barnes, Lee) suggests mag primers. Any thoughts on this?

thanks

 

[Moosen]

I haven't had a chance to work up any new loads, but I've been impressed the 200 gr Hornady PSP plain jane bullets - I've been getting consistent sub-MOA groups from my 20" bbl Model 7.

I've just started loading for my new to me .350 Rem Mag (M7, 20" barrel). I've had a bit of luck with 200 gr. Hornadays behind 59.5 gr of R15.

But what I'd like to have as my "go to" load is 225 Barnes TSX (these bullets work great in other calibres I've used). I've heard that Ramshot TAC is the ticket, but I'm in Yellowknife and so powders I have are the ones I've got to work with for now. H4350, R19, R15, and Varget, and these two types of bullets.

Anyone had any success with any of these pweders for either of these bullets?

Also, I read somewhere to use non-mag primers with .350 Rem Mag, (.35cal.com I think) but all the load data in my manuals (Speer, Nosler, Barnes, Lee) suggests mag primers. Any thoughts on this?

thanks

 

[Whelen B]

35cal.com is my website so...
- with the powders at your disposal mag or non-mag primwers should be fine. Mag primers are recommended for harder to ignite large charges of ball powders by some manuals. They may give more pressure so work up loads. I have used both but like WLRM best myself at present. Got a friend in NWT who often hunts way sub zero who likes mag Fed 215 believing it's the hottest - says never had a mis fire. Accuracy may (?) be be better with one or the other. You need to test.

Of the powders you list I believe Re15 and Varget will be best to try to give you acceptable hunting velocity. I'm pretty sure ReL19 and H4350 will be slow as mollasses with what you can get in the case.

For a 225gr from a 350RemMag I would want around 2650 to 2700MV - that's about right. All my Remingtons (600,M660, two custom shop M7s) have very long throats but the magazine limits OAL to about 2.820". That will be your challenge. It's a problem to get enough powder in for good velocity with that COAL limitation and that loooong 225 TSX. Easy peasy with a shorter 225 partition or 225 Gameking - even conventional 250s work better. Barnes actually does NOT recommend the 225 gr TSX for the 350RemMag. They "recommend using the 200gr TSX in 350 RemMag rifles with short magazine boxes." At 2.800" you will be crimping on the ogive (read Barnes link below).

http://www.barnesbullets.com/images/350RemingtonMagnumWeb.pdf

TAC may be a game changer on all this but I've never tried it myself yet. The Barnes data shows 2764MV with the 225TSX at 2.800" COAL. Nothing wrong with that - you could use that in with your magazine length. Also Barnes says a .050" jump to the land is best with the TSX for accueacy - though some have found different. Henry can supply TAC I think.

http://www.budgetshootersupply.ca/catalog/Ramshot_Powder_68.cfm

 

[Moosen]

thanks a lot for the comprehensive reply
I am still hoping to get a moose with this rig before the season closes on Jan 31!

35cal.com is my website so...
- with the powders at your disposal mag or non-mag primwers should be fine. Mag primers are recommended for harder to ignite large charges of ball powders by some manuals. They may give more pressure so work up loads. I have used both but like WLRM best myself at present. Got a friend in NWT who often hunts way sub zero who likes mag Fed 215 believing it's the hottest - says never had a mis fire. Accuracy may (?) be be better with one or the other. You need to test.

Of the powders you list I believe Re15 and Varget will be best to try to give you acceptable hunting velocity. I'm pretty sure ReL19 and H4350 will be slow as mollasses with what you can get in the case.

For a 225gr from a 350RemMag I would want around 2650 to 2700MV - that's about right. All my Remingtons (600,M660, two custom shop M7s) have very long throats but the magazine limits OAL to about 2.820". That will be your challenge. It's a problem to get enough powder in for good velocity with that COAL limitation and that loooong 225 TSX. Easy peasy with a shorter 225 partition or 225 Gameking - even conventional 250s work better. Barnes actually does NOT recommend the 225 gr TSX for the 350RemMag. They "recommend using the 200gr TSX in 350 RemMag rifles with short magazine boxes." At 2.800" you will be crimping on the ogive (read Barnes link below).

http://www.barnesbullets.com/images/350RemingtonMagnumWeb.pdf

TAC may be a game changer on all this but I've never tried it myself yet. The Barnes data shows 2764MV with the 225TSX at 2.800" COAL. Nothing wrong with that - you could use that in with your magazine length. Also Barnes says a .050" jump to the land is best with the TSX for accueacy - though some have found different. Henry can supply TAC I think.

http://www.budgetshootersupply.ca/catalog/Ramshot_Powder_68.cfm