You mentioned using Swift A-frames in a PM you sent to me as your choice of bullet. I noticed they retain almost their entire weight after impact, as well. Where have you been finding them? Cost?
C.I. Distribution, one of the site dealers sells them.
They are not cheap running 70-75 bucks for 50 ($1.50 a bullet) . These are a "very premium" bullet that I save to for game animals (moose), not punching paper beyond load development. In comparison, a quick check on the "adjusted for the buck" price of Partition's is now almost 60 bucks for 50 ($1.20 a bullet).
Here's his latest link:
http://www.canadiangunnutz.com/forum/showthread.php/886054-SWIFT-Scirocco-II-and-A-Frame-Bullets
There is only one other Swift dealer in Canada that I am aware of. accuratebulletcompany (dot) com
Scirocco II's are Swift's bonded bullet (similar to the Accubond or Interbond). Those go for about the same price but are packed in a box of 100 (so comparable to Accubond's which go for 45'ish bucks for 50 - call it a buck a bullet) - which is also comparable to the TTSX (price wise) which also comes in at about a buck a bullet.
With Swift you only get two choices - the A-Frame and the Scirocco - they just don't make any other type. The A-Frame should be thought of as a "bonded partition". The nose is a little tougher and almost never separates (like the partition does) and the jacket is slightly tougher like a bonded bullet.
With the A-Frame you get 175% expansion at a "7.08 friendly speed" of 2200 fps (so 300 yards without loading hot). To get 160% expansion with the TTSX you need 2400 fps (under 200 yards) if shooting a "similar weight bullet at the same muzzle velocity" - at an impact speed of 2400 fps a bonded Scirocco II expands to about 200%.
(slightly opening the tip of a mono bullet @ 2200 fps is not what I personally consider expansion - I would launch a TTSX with my 257 Wby which would turn it into a "more than adequate" big game rifle shooting a 100 grain bullet, not so much in my slower guns)
If you can't shoot lead the mono's have their place. If you shoot blistering "magnum" speeds then you can get away with shooting mono's and get expansion like you are "used to" with more traditional bullets. If you are shooting a 7.08 then maybe a mono isn't your best choice. If you are shooting close enough to retain the velocity that the mono "needs", then you have way too much bullet for what you are shooting - a 30 cent Sierra would be "more than enough" at that range.
All of these are "premium hunting bullets", not "range poppers".
(edit to add: To be fair I had a similar discussion with our Hornady rep who was pushing the virtues of the GMX (Hornady's mono). He stated that while true that the GMX did not expand like even a bonded bullet at lower impact speeds, the depth of penetration and the "shape" of the wound channel "made up for that" - now maybe that is true, but if you hit a deer broadside and you only have (what?) 18" to penetrate until you are out the other side, what good does 38" of penetration do for you. And while the internal wound channel may look (different) you still have a 7mm hole on exit instead of a 13 mm exit hole (expanded bullet) which could aid if you have to track to recover in dense bush. What the discussion did leave me with was the consideration that I would try the GMX in my 243 if I was hunting from my bow stand. From that location I can not see past 35 yards due to the bush density - and that's uber-close for any "rifle". In that situation and 80 grain GMX right to the shoulder of a deer should put it down "right there" - and a shoulder shot at 30 yards is the only shot I would consider so the mono might do less damage than even some bonded bullets which I have had "explode" at that range and do considerable damage to the meat)
You really have to match your bullet to "your" conditions. If we all hunted the same there would only be one style of bullet on the market
