CCI 450 primers

[dbaird]

Anyone tried these in .223 working up a load?

 

[243winxb]

The 450 & 41 are the prefered primers for ARs and ball powders.

The 400 primers flows into the firing pin hole , with midrance loads, shooting my bolt action.

 

[Tireguy]

450s work great with N540, RL15, MR2000 and H4895.

BR4s work great with Varget.

 

[stacy]

450'S FOR ME WORKS GREAT IN SEVERAL BOLT 223 IN MY NEST!

 

[urbanrifleman]

CCI 450s are the only small primer I buy. They work in everything. Great in AR15s as well as my best benchrest 223A, and 6BR. Works with slow powders and fast powders. Takes high pressure well. Shoots tightest groups.

 

[grovey]

I had 4 ftf with at a range session this week. I was able to get the 4th one to fire on the third try, so I can't say where it started, but the other three were 0.010 to 0.015 short of the rest of the cases ( unfired by me) measured at the datum. I made the mistake of not measuring every single case from the lot of "pre prepped " 1x fired brass I bought and it bit me in the azz.

I wasn't going to bring it up here, and I'm sure it's still somewhat inconclusive, but I broke these three ftf's down today and dropped the charge a bit and seated them into the lands. They still wouldn't fire. I broke them down again and replaced the ftf 450's with new cci 400's and reseated the bullet into the lands and fired them to get my brass on par with the rest of the lot. I would think the 3 ftf with a light primer strike would finally go off when I jammed a bullet, but no go. The primers were dented more than before , but click ...

 

[BenPerfected]

I had 4 ftf with at a range session this week. I was able to get the 4th one to fire on the third try, so I can't say where it started, but the other three were 0.010 tp 0.015 short of the rest of the cases ( unfired by me) measured at the datum. I made the mistake of not measuring every single case from the lot of "pre prepped " 1x fired brass I bought and it bit me in the azz.

I wasn't going to bring it up here, and I'm sure it's still somewhat inconclusive, but I broke these three ftf's down today and dropped the charge a bit and seated them into the lands. They still wouldn't fire. I broke them down again and replaced the ftf 450's with new cci 400's and reseated the bullet into the lands and fired them to get my brass on par with the rest of the lot. I would think the 3 ftf with a light primer strike would go off when I jammed a bullet, but no go. The primers were dented more than before , but click ...

Any chance the 450’s got wet?

 

[grovey]

No chance they got wet or contaminated with lube, etc. I really expected them to fire when I jammed the bullets.

 

[SteveOak]

Yes. I use them for my AR15 load with TAC and 6BR with Varget.

 

[searcher]

The CCI450's are GREAT in the high pressure cartridges and excel in my 6.5 Grendel, 6BR, & Dasher among others - but for the .223, IF it is an A/R, there are better choices like Federal Gold Match A/R, Remington 7 1/2, CCI 41, Tula .223 and Wolff, all of which have thick cups which are deemed appropriate for the floating firing pins in the A/R's. If a bolt gun - I'd not hesitate to use the CCI450.

 

[Jeff A]

The 450's work great in my 3 223's.

 

[grovey]

I don't own an AR. All of my 223's are bolt guns. The two I was shooting were Tikka's. Again, maybe it had something to do with being struck light the first time because of the undersized cases.

 

[SteveOak]

The CCI450's are GREAT in the high pressure cartridges and excel in my 6.5 Grendel, 6BR, & Dasher among others - but for the .223, IF it is an A/R, there are better choices like Federal Gold Match A/R, Remington 7 1/2, CCI 41, Tula .223 and Wolff, all of which have thick cups which are deemed appropriate for the floating firing pins in the A/R's. If a bolt gun - I'd not hesitate to use the CCI450.

I am wondering why/how the CCI 450 would be a great primer for high pressure cartridges but not for an AR.

It seems to have a cup as thick as any other small rifle primer.

 

[ratbuster]

I've used 450's successfully in: 17HH, 221 Fireball, , 20 Practical, 223, 204R, 6BR and 6.5 Creedmoor. Very high volume varmint and target. Not one FTF. Great primer!

 

[CT10ring]

I use CCI 450's in a 6X47 Lapua (small rifle primer) - because the load data I referenced had these primers as part of the "recipe". I always "assumed" they would be too hot for a small cartridge. Could someone explain the difference of
BR-4's (which I use) and 450's? No safety pressure issues? thanks...

 

[urbanrifleman]

The CCI 450 is IDEAL in the AR15 at NATO pressures.

 

[urbanrifleman]

I use CCI 450's in a 6X47 Lapua (small rifle primer) - because the load data I referenced had these primers as part of the "recipe". I always "assumed" they would be too hot for a small cartridge. Could someone explain the difference of
BR-4's (which I use) and 450's? No safety pressure issues? thanks...

The BR4 appears to be the more expensive CCI 450.

 

[grovey]

I had another ftf yesterday. I tried it twice, then put it aside and shot the remaining 3 groups I had loaded. It finally fired upon the third try. The brass was not grossly undersized this time as with the last three. My load is 0.012 off the lands at the moment.

 

[Laurie]

I use CCI 450's in a 6X47 Lapua (small rifle primer) - because the load data I referenced had these primers as part of the "recipe". I always "assumed" they would be too hot for a small cartridge. Could someone explain the difference of
BR-4's (which I use) and 450's? No safety pressure issues? thanks...

I did a side by side test of 15 SR primers a few years ago in 308 Win 'Palma' brass. Not quite the same as trying them in 223 Rem size cartridges, but it still gives a good indication as to which are 'mild' or 'hot' using average MVs as the yardstick.

With only 18 fps average MV variation across the lot, around half that of when LR primers were tested previously, and with 'magnums' or 'magnum / match' type MVs evenly spread across the results, there is apparently little or no difference in brisance levels between the types. I have long believed that the difference is in cup strength / thickness, some standard models having been originally developed to suit the low pressure .22 Hornet and its early rifles, many of which were converted rimfires, the very original application of the type.

The CCI-BR4 primer lot used in these tests was a known 'hot' batch bought maybe 10 years ago and although I've had excellent results from it in 308 Win Palma, it didn't do nearly as well in 223 where milder models gave better performance (groups and ES). IME, and I'll admit opinion, there is more difference between individual production lots of the CCI-450 and BR4 models than there is between the two products, the individual application and powder make / grade used also affecting their relative results. Frankly I wouldn't expect to see much if any performance difference between the pair if manufactured and bought at the same time. Whether the BR4 is worth the extra money as a claimed higher QC product and better performer in batch sample tests ..........?

http://www.targetshooter.co.uk/?p=2662

In any event, if you look at the results, you'll see a mere 7 fps difference between the 450 and BR4 on an average MV of 2,815 fps, which is hardly shattering! (Interestingly too, there is also 7 fps difference between the F205 and its 205M 'match' variant despite most people believing they are different 'quality' grades of an identical product.)

 

[Laurie]

I should add to my previous post that on the basis of the 308 Win tests, I adopted the Magtech 7 1/2 in a new Lawton 6mm BR BR 'Light Gun' build from day one. Results with a very mild 107gn Sierra MK and Viht N150 load have been superbly consistent and I'm very happy with this primer's performance.

(The CCI-450 is a known performer in 6BR and moreover recognised as being very 'tough' with hot loads. As my load combination is very mild - 2,700 fps from a 30-inch barrel - I can't comment on how well it would cope if and when pressures are 'pushed'.)