CCI-209M or CCI-209

[49FMarlin]

Im looking to load #4 buckshot I have a whole mess of CCI-209 primers,
can it be used here instead of the 209P primer?
everything else will be exactly as listed

or am i playing with bad boom

thanks
John

Hodgdon load data

Shell: 2 3/4" REMINGTON STS, OR NITRO 27, OR GUN CLUB PLASTIC SHELLS

Load Type | Gauge | Shot Wt. | Powder | Primer | Wad | Powder Wt. (Gr.) | Pressure | Vel. (ft/s)

Lead Buckshot | 12 | 27-#4 LEAD BUCKSHOT | HS-6 | CCI 209M | WAA12R | 30.5 | 9,700 PSI | 1250
Lead Buckshot | 12 | 27-#4 LEAD BUCKSHOT | HS-6 | CCI 209M | WAA12R | 31.5 | 10,400 PSI | 1300

[TjB101]

I’m a rebel ... as long as the primer isn’t loose I’ll interchange them in recipes.

[rancher1913]

your changing from a magnum primer down to a regular primer, not familiar enough with hs-6 to predict what the load will do.

[6pt-sika]

I’ve loaded close to 1/2 million shotgun shells over the last 35 years . Granted most were for clay targets . But I’ve loaded around a two thousand or so I’d say that were buck or slugs . I use 209’s be it WIN , CCI or REM interchangeably with no adverse affects . Not to say that’ll work for you but that’s what I’ve done over the years . As to the CCI 209M I have some of them as well , but to be honest they were purchased to be used in my Knight Disc Rifle muzzleloaders , but if I was short on regular 209’s and needed to load something quick I used the 209M’s . Another factor none of my slug/buck loads are balls to the wall hot .

[centershot]

I’m a rebel ... as long as the primer isn’t loose I’ll interchange them in recipes.

You are treading on thin ice here, sir!

OP - In the case of these loads, subbing regular primers for magnum primers will probably have no adverse effects. With slower burning powders such as HS-6 you will notice unburned powder granules left in your barrel resulting in poor ballistic performance. OTOH, subbing mags for regulars may drive pressures dangerously high depending on the load.

http://www.armbrust.acf2.org/primersubs.htm