Not even close yet.
Standard vs magum primers. I'm going to find out for myself.
- Thread starter mmb617
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Yes, as long as your gun can fire them and you worked up with them, they can certainly work. I would stop short of max data, or sooner if you see issues.
BCR#1
member
When I load .45ACP for my 1911 I always use either CCI or Winchester LPP. I use 7.0 grains of #5 powder and a 200 grain LSWC bullet. I found a brick of CCI magnum LPP and I see/feel no difference using either primer.
Bill
Bill
Coldfinger
Member
I guess it depends on location. In '08 I was in Tacoma. Nothing on store shelves. Now I'm in Panama City. Probably never was much here.Not even close yet.
Coldfinger
Member
"Yes, as long as your gun can fire them and you worked up with them, they can certainly work. I would stop short of max data, or sooner if you see issues."
Appreciate it. I almost always load near the bottom. I see no point in the powder expenditure loading hot just to put a hole in paper.
Appreciate it. I almost always load near the bottom. I see no point in the powder expenditure loading hot just to put a hole in paper.
OP
OP
mmb617
Member
My opinion is that there's not much difference between pistol primers and rifle primers or between magnum and standard primers in either pistol or rifle. At least not in my guns which are primarily S&W's. I've already tried magnum primers in both SPP (9mm) and LPP (.45 ACP) with no significant difference that I could tell. I've even ran magnum SPP in my .223 Sport II, which I'm told you should never do because it could cause a slam fire issue, but I had no trouble with them at all.
I can usually find magnums in SPP, LPP and SRP at my local store but no standard primers in any of those so I use what I can get.
I've also used Winchester, CCI and Federal primers with no noticeable difference between brands.
I'm sure a lot depends on the gun and I always make a small test run first before loading any volume.
I can usually find magnums in SPP, LPP and SRP at my local store but no standard primers in any of those so I use what I can get.
I've also used Winchester, CCI and Federal primers with no noticeable difference between brands.
I'm sure a lot depends on the gun and I always make a small test run first before loading any volume.
Average Joe
Member
I do it all the time, but I always stay below the max load....not because of the primers, but to be safe.
AJC1
Member
I'd be willing to bet that somebody would want to trade you for the small pistol primer that you need because the 223 Shooters are in the same world of hurt.
Coldfinger
Member
I'd be willing to buy up all of the small rifle (not many reloaders here) and trade them but the shipping costs... for that much in shipping I could get a pound or two of powder at the same location as they have green dot, 700x & 800x, WST and Longshot all for $29 -$31 each.
AJC1
Member
I would not go through the hassle or cost of shipping. I would talk around the local range to see if a trade was available. Being on a site like this leads you to think there.are reloaders everywhere but I never seem to run into them.
There are definitely differences that show up over the chrono. Not huge, but differences.
Here is a small test I did in 9MM.
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Toprudder
Member
I’ve used small rifle primers (Rem 6.5) in small primer 45acp. No problems that I could tell. The primer cups might be harder, so lightened springs may have a problem setting them off, but other than that I don’t see why you can’t use them. Just work the loads up, start low.
Coldfinger
Member
Not many folks round these parts that shoot let alone reload. I suppose I'll buy a couple thousand and work up some loads. Appreciate the info gents
I was told that the only difference between the Magnum & regular in the CCI primers is the thickness on the metal used in making the primers. The metal in the magnum primers is a little thicker & harder to set off in some guns.
sfl_gunner
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How does this information relate to Large Rifle Primers vs Large Rifle Magnum primers? I have a bunch of LRMP but I’ve been hesitant to load 308 because the recipes call for LRP instead.
Blue68f100
Member
They also have a little more primer compound to give a longer burn time.
2ndtimer
Member
My experience is quite by accident.
I loaded some 9mm ammo with Sellier & Bellot primers, assuming they were small pistol primers. Then when I took them out to shoot, I had multiple misfires with my previously 100% reliable Glock 19. I started researching spring/firing pin replacements on my old original model 19, then realized I had inadvertently primed the cases with S&B small rifle primers! Luckily they were mild loads with W231 powder and there were no pressure issues, but the older striker fired Glock just lacked sufficient force to set off the thicker cup of the small rifle primers. Interestingly enough, my newer CZ P09 with the double action hammer was much more reliable, over 90% success with them, and those that didn’t go on the initial pull were touched off by the double action second try. YMMV
2ndtimer
Member
I think you can use them if you start over and work up your load using the magnum primers. FWIW, I have loaded lots of .308 Win ammo using S&B Large Rifle Magnum primers. I got them at a real good price years ago and discovered they really didn’t work well with magnum loads. Hang fires and inconsistent with large amounts of slow burning powder in large capacity cases, I.e. .300 Win Mag, and .270WSM. However they have worked just fine in my .308 Win and .270 Win loads. YMMV
Coldfinger
Member
Thanks again for the info gents. I feel confident enough to have loaded up a ladder of 9mm and 40 using both magnum SP and another of standard SR. Tomorrow I intend to head to the range to test them out. Not going to chrono any of it as this indoor range isn't equipped to do so. Mainly I'm looking for function and safety. If interested I'll post my findings careful not to share actual load data but suffice it to say I started at the bare minimum and worked up to about mid range for both calibers. In 9mm I used plated Xtreme 124gr HP and some 115gr Summit HiTek coated. Again only looking poke relatively accurate holes in paper safely and I'm generally pretty adamant about using the proper components however SP primers seem to be on vacation somewhere.
OP
OP
mmb617
Member
My records for the .45 with 230 gr FMJ bullets indicate:
4.4 grain Titegroup 25 rounds fired high 739 low 698 ave 723 with standard primers.
4.4 grain Titegroup 29 rounds fired high 797 low 736 ave 776 with magnum primers.
6.3 grains CFE 43 rounds fired high 857 low 778 ave 821 with standard primers.
6.3 grains CFE 17 rounds fired high 949 low 865 ave 905 with magnum primers.
These loads were all plus or minus 0.1 grain, so that would account for some of the deviation.
Coldfinger
Member
Well I didn't explode myself. All 200 rounds functioned fine. 50 rounds 9mm with SP magnum, 50 rounds 9mm with SR, 50 rounds 40 with SP magnum and 50 rounds 40 with SR. No pressure signs and no obvious gas leakage around the primer. I had one light strike in my Beretta (40). It was so light I can only assume it would have happened with a SP primer as well. All rounds felt good and I feel like I obtained some good data.
9mm=S&W M&P 2.0 5"
40=Beretta APX
Again I always advocate for using proper components but desperate times etc....
9mm=S&W M&P 2.0 5"
40=Beretta APX
Again I always advocate for using proper components but desperate times etc....
Harriw
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- Nov 8, 2018
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Wondering the same thing but for .30-30. I'd probably be starting with H335 since I have it, and I've actually seen magnum primers suggested (not in actual loading data) for H335 in .30-30. Main reason would be lack of availability of LRP. I have a few months before I really need to worry about loading that caliber so I can afford to wait and watch for LRP availability... just hedging my bets.
So has anyone tried magnum primers in .30-30?
2ndtimer
Member
I used to load W748 in my 14" T/C Contender for silhouette competition with large rifle Magnum primers. Speer's manuals have always recommended Magnum primers for ball/spherical powders. I am sure you would be fine using them with H-335, just back off 5%, and work up gradually. Oh, and consider trying some Hodgdon Leverevolution powder. That is all we load for my son's Model 94.
Reloadron
Contributing Member
I played this game once a few years back and the results were interesting. The rifle was a 26" barreled Remington 700 action with a 1:12 twist. The brass was all the same lot of LC 11 all trimmed the same. The powder was H 335 26.1 grains under Sierra 53 grain match (SIE #1400) bullets. Each group of shots is 10 rounds. The Chronograph is an Ohler 35P about 15 feet downrange. While the target is included I was likely more focused on not shooting the chronograph.
The target:
The cartridges:
The numbers:
There are CCI 400 standard, CCI 450 magnum, CCI #41 and CCI BR-4. All shots were 100 yards. Time between shots was about 2 min and the ammunition temperature was about 73 deg F. Interesting that the magnum primer 10 shot average velocity was slightly below the standard primer velocity. The CCI #41 is also a magnum primer using a slightly different anvil angle.
Ron
The target:
The cartridges:
The numbers:
There are CCI 400 standard, CCI 450 magnum, CCI #41 and CCI BR-4. All shots were 100 yards. Time between shots was about 2 min and the ammunition temperature was about 73 deg F. Interesting that the magnum primer 10 shot average velocity was slightly below the standard primer velocity. The CCI #41 is also a magnum primer using a slightly different anvil angle.
Ron
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