Shell holder #38 instead of #4??? What issues could I see?

[Colin78]

I already have rcbs shell holder #38 for my 28 Nosler. I am going to start reloading for 300 win mag. RCBS says I need shell holder #4 but no one has them. The 300wm brass seems to fit just fine in the #38. What kinda issues do I need to watch for or am I setting myself up for headaches and need to wait till I can find a #4?

 

[sextonds]

I would wait on a #4 if that's what is recommended, but I'm OCD, so who knows .

 

[CaptDru]

I use a #4 for my PRC and they say to use #38. I haven't had any issues. My rifle shoots under .5 moa consistently. But I dont shoot competitively.

 

[Philward]

May be how tightly it fits the rim.

 

[Rflamm250]

I also use a #4 and #38 on the RSAUM case with no problems

 

[philipbrousseau]

If there's not enough of the rim in the shell holder you might stick a case in your sizing die. I have 2 different nbr shell holders that appear the same but I once stripped the rim off a 3006 case using the wrong one.

 

[crystalgayleguy]

give it a test run of a few cases

 

[whatnext]

#38 works fine. It's the only magnum shell holder I own and have used it on 300WM, 28 Nosler, PRC's and others.

 

[Colin78]

Thanks everyone. My dies and brass will be here tomorrow. I will give it a go and see how it goes. I think I should be fine.