Good afternoon to you!! Yes, the Talley Black Anodized 1" Medium Rings/Base Set designed for the Weatherby Vanguard will fit a Howa 1500, as these rifles use compatible actions and mounting dimensions. Both long and short action Howa 1500 models will accept these rings and bases. Hope this helps. Have a good rest of your day.
🇺🇸🇺🇸 'merica' 🇺🇸 🇺🇸

Yes indeed, these will fit the Howa 1500.

Hi Lance and welcome. Yes Sir, they would. For additional strength and zero retention, I would consider the solid scope mount as well: budsgunshop.com/product_info.php/products_id/58803/dnz+products+1+medium+matte+black+short+action+base+rings+h ------------------- This is the "Short Action" so you may need the "Long Action" depending on the caliber of your rifle. Cheers and stay safe!

Hi Lance, yes, the Talley Black Anodized 1" Medium Rings model 940734 are compatible with the Howa 1500 rifle. They are designed to fit Weatherby Vanguard models as well, providing a secure mount for your scope.
Stay safe & have a great day!