Once you taste a real mag,the P-mags get very funny,very fast. Especially in BR.
Cain't speak to the Gay Tiger,as I've never been there,but have been on both sides more than a few times. I'd rather BR than Kreedmire,mainly because I've multiples of each. Have much love for 270 and Seex Grendel too. The 18" 270 Montucky with 105's is EVERYONE'S Favorite and I savvy the nudge. Rather nice blend of performance,to platform,that's just funner than fuck.
.224" 88's grant a .545BC and of course a velocity advantage along with that better aero form,in a like case capacity with 105/08's. So they are flatter and drift less,while carrying greater impact velocity to victims. Recoil is less too,no matter the case capacity in extrapolation. None of it huge,but it all adds up.
As Beer Cans go,there's less than .020 BC difference betwixt the .224" 90 and the .243" 110. I'm happy to squirt 88/90's,but of course shoot it all.
As 6mm's go,I shoot the 18" 270 Montucky more than anything. In .224" I'm happy with 223,223AI,22 PPC Fucking Improved,22 BR and would just as soon leap to Speedmire from there,but gun quite a few more chamberings in the diameter. Tough to beat a 21" 223/223AI and AICS DBM AM steel 5rd mags with 88 Smooches,for Utility. You can't push 'em fast enough to get in a pickle at any distance and they are Dirty Dastardly Fucks,well beyond what anyone would begin to believe.
Less is so often much more.................