Ramshot Big Game, 7mm-08, and Magnum Primers

[Doc Holliday]

Looking at 7mm-08 load data with Ramshot Big Game and 120-140gr pills. Please give advice and your experiences with magnum vs standard large rifle primers and how that affects charge min and max loads. Any specific load recommendations welcomed. 24” barrel

 

[MattB]

I use 48.0 grs with Hammer Hunter 120 grs. Shoots great and below what I have seen for max/no signs of excessive pressure. Not sure the COAL.

 

[t_carlson]

I’ve heard of using mag primers in ‘06 length cartridges but not ‘08. I didn’t see much difference in a 270.

 

[5MilesBack]

I’ve heard of using mag primers in ‘06 length cartridges but not ‘08. I didn’t see much difference in a 270.

That's good to know. I have a bunch of mag primers but mostly load for .270 now. Was debating trying to trade them for non mag, but figured I'd try them first.

 

[N2TRKYS]

I load a book max charge of BG powder, mag primers, and 140 grain Accubonds at 2850 fps from a 20” barrel.

 

[Pharmseller]

You shoulda just called me.



P

 

[coast range]

120 ttsx 49.5 BG and wlrm

 

[Kimber7man]

48 grains with a 140 AB was at 2,850ish, 48.5 got me up to 2,890 in a 22.5" barrel
50 grains with a 120 BT/TTSX, gets you well over 3,000 maybe 3,100 in some barrels.
Only used Tula LRM primers in mine when I had it.

 

[turbobrick]

While not exactly 7-08, I've loaded a ton of 260rem and never seen any reason to use magnum primers.

 

[HiMtnHntr]

I get 2800 fps with 46 gr of big game, cci 200s, 140 gr accubonds out of a Tikka Superlite.

 

[35WhelenAI]

Historically magnum primers burn hotter than standard primers. Hotter being a relative term that could take in to account a more violent burn or hotter temp based on the compound. This all affects accuracy, pressure and velocity.

However, that can vary between manufacturers. I.E some standard primers may burn hotter than magnum primers. It's not cut and dried.

I don't see any information about the temperatures you expect to hunt at, what temperatures you will develop that load at.

As with good loading practice, when you change a component especially the primer, start low and work up. If you can, try both types of primers and see what you get.

If accessibility of primers is in consideration and you can choose only one or the other, based on my experience with ball powders in general, I would go with a magnum primer (given it's a ball powder) and as hunting season can take place in cold temps.

 

[AkRyan]

Simple Pharmseller.....nothing else is needed

 

[Elite]

Simple Pharmseller.....nothing else is needed

I gotta ask what do you mean by pharmseller?


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[KHNC]

I gotta ask what do you mean by pharmseller?


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The user above is pharmseller

 

[AkRyan]

I gotta ask what do you mean by pharmseller?


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Do a search for him on here and you will find more info on 708 and big game powder than you need

 

[Elite]

Do a search for him on here and you will find more info on 708 and big game powder than you need

Perfect thanks


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[Kimber7man]

Do a search for him on here and you will find more info on 708 and big game powder than you need

And some pictures of dead critters…

 

[Roadrunner1]

120 ttsx 49.5 BG and wlrm

Where did you find data for Barnes 120 TTSX with Big Game?

 

[rideold]

Barnes publishes loads with Big Game: https://www.barnesbullets.com/load-data/

 

[Elite]

Barnes publishes loads with Big Game: https://www.barnesbullets.com/load-data/

There velocity's seem high! 49gr of big game for 140grn